first mauser ar 42 zf41

I just picked these up in a trade and wanted to make sure I did alright. these are my first mauser 98s.

one is an ar 42 the other dou 42

the bolt stop on the "ar" doesn't match, neither do the front bands or nosecaps / bay lug on either. everything else I can tell matches

Thanks for any input

more pics

some more pics

I do have this stock on the way for the zf41