I polished my hx's by hand so I know it can be done. Lots of work though. Checkout my tr garage and see what you think. I started off with 400 grit, then 600 then 800 to 1200 but 1200 dry then 1200 wet to get rid of the scratches. Then a hard compound witha highspeed and then mothers witha terry cloth. Or if you prefer to spend the money about 130 a wheel go to transwheel. I work there but cant give deals they do agreat job. powder coat , fix , polish, chrome (done up north) or glens polishing is another.