what should i look for..........

[QKENUF4U]

i talked to the guy who has a 72 swb 3/4 ton today. he stopped in to look at my truck. we started talking and i found out his truck was actually a short bed cut down. so that means the frame has been cut.
what should i look for to be sure im not getting a crooked piece of junk ?
thanks for any info/tips ya can give me
just really wish it was a trailing arm 1/2 ton. not really gonna need that dana 60 with 4:11's in it (more than likely) and really want a turbo 400 under it instead of the 4 speed.
later
lance