An original barrel/receiver combo are very desirable to me in a WW2 rifle and if the barrel is tight even more so. A nice tight stock with correct stamps would be even nicer. That would seal the deal for me although I wouldn't pay that much for it. Then it gets down to the little parts, if they have the proper drawing numbers and configurations. The last piece of the puzzle is you have to use your detective abilities to try and determine if the finish on all parts looks original and if they match the other parts in wear patterns. Very hard to do. After all, a rifle that's been in service that long has to show finish wear and tear.

I'm reluctant to pay top dollar for a rifle someone swapped out a bunch of parts to create a "correct" rifle but that's just me and I'm not a big time Garandicon collector either. Just an older guy who likes WW2 M1s.