Sounds like these kind of swaps aren't going to work very well for the intended use of my truck. If they were an almost direct swap, that worked with all the other existing components but simply had more power or better mileage it might be worth it to me. But to spend that kind of money on this particular truck would be impractical for my use/plans. If I were to go through all that work and money. Then I would certainly have to put a new (real) paint job on it. A/C, power steering, freshen the interior, etc... Suddenly its not an old work truck any more. I am more interested in making my truck function in like new condition, like 1955 new, not 1995.