heres a link-
Click Here - scroll about 1/4 of the way down, has a picture of a gold wheel mounted on a steering knuckle, but the actual wheels will be chrome colored. I guess its pretty expensive for what you get out of it but you have to take into acount taking the wheels off a rear axle, taking the wheels off the front knuckles without breaking the knuckles, and putting the new wheels on the knuckles by threading the pin through them and re-gluing the pins back on without gluing the wheels in place, and (takes huge intake of air) I guess it comes out to be worth it.
good luck,
David
PS, for the FS wheel mod you will problably have to dremel away some of the plastic on the "box" part of the chassis because the larger wheel will rub against it when turning, drasticly slowing the car.