My dilema

[Manxxman]

This last week I bought a 1970 C20 long bed 3/4 ton truck that is completly dis-assembled. It is in the process of being restored and the owner had sudenly passed about 3 months ago. His wife was left with this unfinished project and did not want any part of it. I got the project for a very good price and also got over $20k in receipts for what has been done so far and the parts.
My dilema is, this is not the truck I wanted to build, C10 1/2 ton shortbed fleetside is were its at for me. I know allot of the parts are interchangeable, but i basicly have a new powdercoated longbed frame with new suspension and a long bed that has been blasted and primed. Is it worth anything?
I have a shortbed frame lined up, and can buy shortbed sides with no problem.

I don't have any pictures, but this thing is imaculate. The Dana 60 axle is brand new and powdercoated black w/posi. The frame is set up for a small block/700r combo and has a brand new 2 piece drive shaft. All the brake and fuel lines (rear tank) are already installed. Every nut and bolt is new.
I thought about cutting it and shortening it, but it would be such a waste to ruin such great work.

I got so many great parts to start with but I'm kind of overwhelmed with were to begin. What would you guys do?
I will try to get some pictures up as soon as I can.