Heres a website:
http://www.telusplanet.net/public/aarcuda/
According to the for sale page on this site your looking at the mid 30's to mid 40's for a numbers matching AAR cuda, and about 10K for junk.
Sad to say I sold mine in 83 for 3000, lemon twist Yellow (painted white by me) 727, 3.90 (original) and 4.56 quick change rear gears. It now resides somewhere NW of Augusta Maine.