I do not believe it would be enough, and more over, I do not believe (from a material, political angle) it is possible to supply them with anything heavier than rocket launchers or small cannons in the quantities it would require to make the field even from an armement standpoint.
Insurgents will have to loot what they can get on Kadhaffi's army.
But considering we've been ping-ponging this for a few messages, I offer you "agree to disagree" and leave it at that.
Well, I am not savvy regarding international law regulating warfare, but do they remain "civilians" when they are manning turrets? Not rhetorical, but honest question.
I still see it as obviously contrary to the UN resolution: There's civilians on the other side too, and giving heavy weapons to inexperienced civilians (to use your term) certainly has a severe risk of backfiring. And supplying weapons to one side certainly sounds like offsetting, delaying or reducing chances for a ceasefire. Supposedly we want them to stop fighting.
Also, I have not looked the particulars, but Libya's regime is under an arms embargo since UN resolution 1970.
Taking sides even more blatantly could have political consequences that would break the thin international consensus we require to operate.
Or so I believe. I think I spoke my view and this and will not pursue you to continue at all costs this discussion, if you wish.