read the entire thread and only question I can think of in benefits of frame swap (now we know what the doner is) is why not just use the AD big truck front clip, fenders and hood. to make up the width difference? seems there has been discussion of that on other posts when building restomods with the shorter rake of the hood and fender width being a plus. what is the overall width difference between big truck/small truck AD?

Larry
Old man᠁Old truck᠁neither one goes very fast. All you need in life is TIME, PATIENCE and MONEY.
If you are missing one component, you'll need an abundance of the others two.