I agree that messing with old trucks has to be considered a hobby, and a very expensive one at that. Since it is a hobby, we are at liberty to build what tickles our fancy. I would prefer gas in a 1 ton because I like the performance of gas. Although Diesel engines have been putting the bread on my table for 45 years doesn't mean I want to build a 1 ton Diesel. Diesels that are built in USA that are light enough to work in a 1 ton don't have the pep to suit me. It would be interesting to put an engine of European design like the Sprinter engine into a 1 ton. European commercial vehicles are almost 100% Diesel and they have the pep of our gasoline engines. I think anyone who thinks they are going to rival modern day economy with anything they build is just kidding themselves. However, I mess with my jalopies because I enjoy doing it. It makes a good diversion from running a fleet of trucks that has to run in order to pay the bills.