Good luck, the only semi auto .308s I've seen in that price range lately have been VEPRs and Saigas. Saw a PTR recently but I can't remember the price, over $1K though.
I'd suggest saving and waiting out the panic for an M1A, maybe go ahead and buy some mags for it if you can find them.
NCO of Marines, 3rd Award Expert Rifle, 236 KD Range
D Co, 4th CEB, Engineers UP!! OEF 21JUN-20SEP2011
REV. 19:11 And I saw heaven opened, and behold a white horse; and he that sat upon him was called Faithful and True, and in righteousness he doth judge and make war.