Project Ugly Dart

An 8" wide wheel needs about 5.2" bs to clear in the front with discs and 0 camber.

That's very helpful. I believe the 67 - 69 Dart fenders are basically the same so that number should apply. Does that sound right?
I like a rear wheel that's got the deep look. So far its a challenge finding a set with low rear backspace and high front backspace without spending $$$.