I will have to take this up again at a later date. At present I will answer your direct question on the "resettlement" theory before i have to leave off. Hence:
The simple fact is that there is no credible evidence whatsoever for 'resettlement'. It is a pure fantasy. By contrast, there is enough forensic evidence from the Reinhard camps that from the 1940s, everyone other than deniers concluded they were extermination camps.
Moreover, the documents that exist for the occupied eastern territories flatly contradict any claimed resettlement to region after region. The best example is the Ostland, which is repeatedly alleged to have been a resettlement destination by Mattogno, Graf and Kues. The Ostland leadership discussed in mid-1943 that there were only 72,000 Jews left in three districts of the Reichskommissariat. The breakdowns conform to what is known from multiple other sources about the Riga, Minsk, Kaunas and Wilno ghettos, to name the obvious examples, as well as all of the smaller labour camps which existed in close proximity to the big ghetto centres. The number includes the few survivors of the 60,000 Reich Jews deported to the Ostland ghettos in 1941-2. It cross-references so well with so many sources that it can be taken as a proven fact that there were only 72,000 Jews left in the Ostland in mid-1943. (That number was of course reduced drastically further through to 1944, when the final survivors were either killed or transported to Stutthof, at a time when the Nazis had belatedly realised that Jewish labourers might be a good idea.)
This evidence utterly refutes any contention that there were extra Jews swirling around a major region of the occupied eastern territories. Do you agree - yes or no? Answer the question straight up without hedging.
No, with qualifications, because the evidence accessed may not be exhaustive. For example, you speak of "region after region", where "all regions" is required.
My thinking here is (a) the Korherr report figures for deportations up to 1943 are accurate; (b) the extermination camp interpretation is physically impossible; (c) no-one really believes it or they would have done commensurate forensic studies in the intervening 68 years. Hence the Jews must have been deported East, as the German documentation claims (indeed even the "damning" Goebbels diary entry says so).
As you say, this must have produced documentary evidence, as we are dealing with basically literate societies run by bureaucracies dealing with people with little or no means of livelihood. To establish some reasonable expectations, we might start by considering similar deportations.
For example, what records did the deportation of the Krajina Serbs in the 1990s produce, or the fleeing of Jews from Belgium and the Netherlands to France in 1940, or the expulsion of the Ugandan Asians to the UK in the 1970s? In the case of the Ugandan Asians, there were initial estimates of the numbers sent, but less track was kept thereafter as they merged into the general population and decisions on housing were devolved onto local authorities. In the French case, we find that that many Jews were not included in estimates of French Jewry after the war (so Rassinier, who noted that numbers were only of established congregations, but found information to identify the approximate numbers). These are three cases of deportation on state authority to another established state, but this is not the case here where an occupied territory is involved.
To take a partly similar example of a population movement, you could not calculate the number of illegal immigrants to the UK by looking at DSS figures, as immigrants would not qualify for benefits. Here again, there is a regular state authority in the receiving area and a probably large population movement. I agree the comparison is not exact, but the principle of not recording data outside externally given responsibilities is relevant.
It is also relevant that the receiving authorities in European Russia would be dealing with a large number of migrants arriving over a period of two years in the context of other population flows (people fleeing East to avoid the Germans to being sent East as labour in the Urals factories). Not having an anti-semitic agenda, they would have had no reason to identify arrivals as Jews.
But let's leap ahead to possible responses from the Gurus, who are unlikely to give up their fantasy so quickly, and possible speculations from you. There are only two possible hypotheses [my emphasis] which could be advanced to explain the presence of only 72,000 Jews in the Ostland in mid-1943 in a sensible manner.
Firstly, maybe there were hidden Jews under SS control in the Ostland, in something like a concentration camp network, who don't show up in the 72,000 figure. [...]
The second hypothesis is that the resettled Jews were then sent onwards into Army Groups North and/or Centre. [...]
You have not established that there are the only two possible hypotheses. Were there no residual local authorities in the occupied territories or amongst the deportees themselves?
[...] this army group transferred large numbers of Russian civilians out of its area, [my stress] [...]
An interesting reference here to "transfers of large numbers of Russian civilians" here!
By contrast, revisionists have yet to account for the whereabouts of well over 2 million Jews deported to the death camps. It is honestly not worth their wasting their time looking through all of the files to find nothing. But if they want to prove resettlement they will have to do just that, no ifs, no buts, that's what will be required, explaining the total absence of evidence for 'resettled Jews' in all of the surviving files - which incidentally overwhelmingly fell into Western hands. The documents itemising ration lists and labour deployment and the personnel files can be found in NARA in Washington DC or on Germany, even ordered on microfilm to be read wherever you want in the world on a microfilm reader.
No individual researcher could read "all the files" of a modern society, which it takes an army of bureaucrats to produce. I agree that the resettlement theory needs to be developed, but of course the "normal science" of academia rules it out from the start, so who has the motive and resources to investigate it?