Stupid Question 1/2 vs 3/4ton frames & bed differances???

[arkracing]

I'm looking at purchasing a '64 Chevy Pick. The Cab and nose are in nice shape, the cab does need the floor supports, which is normal around here. The guy selling it, said the truck was originally a 3/4t and he put the Cab on an '85 SWB Chassis. He has the original 3/4t frame - is there much differance in a 3/4t vs. 1/2t??? I figured I could just take the front end out of the '85 and put it on the 3/4t frame, and shorten it to be the correct SWB.

He also said that he used bedsides from a '73-'87. I seem to remember having a problem doing this with a '69 (Fender holes were different, and something about the front steps and stake pockets wasn't right?). Anyway he said that he lengthed the '73-'87 Bed by 4" to get it to fit on the '85 chassis with the '64 cab and nose correctly???

A buddy of mine has a decent set of the correct '55-'66 Rear Fenders for the truck that I'm sure I can score for nothing or cheap.

It has a 350/350 which I'll assume are cores as it doesn't run/move

Like I said Is it worth putting back on the 3/4t frame, using the '85 Disc Front Cradle and shortening the chassis?, Then I'll have to screw with the bed if it was extended 4" as well

Price is around $1250 for everything (Remember it needs: Cab Supports - All 4 of them, but the floor and rockers are good, doesn't run, brakes, etc etc.)