Check out: http://airassisted.com/osCommerce/catalog/
I've bought from 'em & highly recommend them. I think they can assemble you a custom setup if they don't have what ya need.
Good prices & super fast shipping.
Hey it was nice to chat with you the other day brother.
Your best bet would be to fab a set of your own cups like we chatted about, Or if you give me the measurments I can build you a set of upper and lower cups and even offset the upper cup for you and ship you a set of cups for the car.