I myself drove a 300 TD for about 5 years even in a Canadian winter. I LOVED that car. She didn't have a name, but with that engine purr, the sunroof down and after I got a sound system, I felt like I was in heaven. Whatever you do, DON'T get rid of this car. It will last forever provided you maintain it in tip top shape. Also source a parts supplier. There are a few you can find online.
Alas, when the engine really started to go and needed replacement, she was just too much to maintain. My wife and I still talk about her like a long lost relative.
Oh yeah, good luck with the project!