Dawger, one thing you'll have to contend with is the extra weight of the diesel. I don't know which engine you're planning to use, but they all are very heavy. Surely your suspension will have to be beefed to compensate.
Summer before last, at a car show, I saw a '50 Chevy station wagon with a 6 cylinder BMW diesel. I believe it came from a Lincoln. I was not able to find the owner, but I wish I could have talked to him.
At one time I considered putting a 240D Mercedes diesel in my Model A.