I'd venture a guess and say this truck is ultra rare. Like 1 of 10 existing rare. These would make similar year crew cab chevys a commodity.
I personally wouldnt cut it all up myself with how rare any short bed dodge is. Then again your already saving it. Just throwing my .02.
A newer 360(5.9) dodge truck motor and trans with the computer would be interesting.
Also consider looking into a newer dodge frame and setting the body over it. 2wd 94-02 dodge frames are almost free and you would get everything you want.
A '65 that was in diesel power. They channeled the body over an '06 frame. I think a 94-02 frame would actually be easier to use.
http://www.dieselpowermag.com/featur...on_dodge_d200/