Will if your price range is CETME, then look at the Saiga as well. I would pick the saiga in that range.
At the $1000 range I would go with the ptr-91, DPMS LR308 or a DSA Stg58
At the $1500 range, you could go with either the M1A basic DSA SA58 or the armalite AR-10.
1800-$2000 range you have the DSA58 tactical. They are hard to find however.
above that, you have lots of choices most custom.
If I could only have one, I would go with the M1A/M14, then try to get the others later on.