1957 GMC 4x4 frame swap???

[kapawso]

I have a 57 GMC 100 that I am converting to 4x4. My stock frame is tweaked so I want to swap the body and put it on a later model 4x4 frame. What years and models are the best for this swap? It will be a daily driver, not a crawler. I have heard of people using the full size Blazer(mid 70's?) for this but the wheel base seems much shorter. I'm figuring on putting a flat bed on so it will make it easier. Anyone on here have something like this? Any help is appreciated. Thanks.