Hello from Colorado, I have a 1981 ram 50 sport that I got as my first vehicle from my great grandpa and I also have a 1984 ram 50 royal diesel 2wd. The 2.6 motor is blown and needs rebuilt on the 1981 and the cab is badly rotted on the 1984. Debating swapping the diesel into the 1981 or rebuilding the 2.6 and restoring the truck from the ground up. The diesel is a cool novelty but the 2.6 is original. Any suggestions? The 1981 sport has the same paint job as the 1981 ram 50 commercial on YouTube.