In your original post you mentioned 15" or 16" wheels. The 15's will look period correct and offer good choices in rubber. 16's will give you a headache when you try to get tires; very few choices. If handling is more important than original looks, go with 17's. If you are not going to go with "Halibrand" style wheels, I would definitely go with 17's since the appearence won't be original regardless of size.
Congrats on you purchase, and happy building
