[Arnoldaviation14]

So i bought this truck back in Dec Thinking it was a 1969 and have been learning more and more about it ever sense. I have the Bill of sale and all of the paperwork for the cab of the truck which is a 1971.. I finally had a little time to disassemble the truck for my build and I discovered its a 1969 frame which would explain the 69 front clip...

So would you build it off of the vin I have? 1971? or try to obtain a 69 Vin and build it as such..
I already have a 1972 Cab that I was planning to use because the cab thats on it is pretty rotten.. (Ill repair that later or sell that cab)...