Most any war model is good ... What the issue is the post war models were very hit and miss... For example the universal m-1 though cheep are not a m-1 interal if made after a certian date though they look like it ...
M1CarbinesInc.com to me covers most of the post war guns the good and the bad ..
It all depedns if you want a beater gun or a nice colltecore war model... The nice war ones are going for 750 -1k and up ... Folding stocks for more
Also if you ever run into one marked m-2 run very very fast ... That is a full auto reciver one and you dont want to get mixed up in that ( some people have bough m-1 that were not demiled m-2 not good)