Re: upgrading my stang
The backspacing and offset is for a 99-04 wheel, so that's good. You may have some rubbing at full lock in either direction, but it's nothing serious. Just remember to allow room to turn without completely locking the wheels.
I would go with the 17x9s, they look way better than the 17x8s, they still tuck into the well too much, at least for me. Plus the wider tires are always a handling improvement.
What finish are you getting on the bullitts? black, chrome, anthracite?