Cool Breeze- It's important to know that, with the exception of the all-USGI 30-06 guns that Cole is selling, as per Dan's post above, these are going to be the Israeli modified 308 guns. Most all the kits on the market are from U.S. made guns that the Israelis modified. Original 30-06 guns in un-molested specs are rarer and more expensive. Now $2000 is very high for a gun built on an Israeli kit. $1200 has been about average, with sales at lower prices on occasion and some better quality builders charging more. I would recommend the USGI guns from Cole as that will give you a more valuable gun, no matter the price you pay. The base kit is about double in value, at least. OOW's kits at about $1000 are including all parts and mods needed to assemble as a semi. Normally, one buys a $400 kit and spends a few hundred acquiring a right plate, machining internals and getting a semi trigger and sear. Either way, you still have to rivet it together and parkerize, etc.
Remember too, that converting calibers is fairly easy on these guns, with swapping of the barrel and a few other important parts. Though an Israeli 308 gun may be a little easier to convert to 30-06, than the USGI over to 308, just due to one of the cartridge stops. If you want a 30-06 to begin with, then just go with that and be done. 308 is not a great option anymore, due to ammo cost.