It's starts with a set of my favorite crank arms, Shimano Dura Ace 7700. They look like a traditional pair of cranks should, light weight, and their supper dupper mega stiff. Perfect for my project. Used, without rings, and hammered on... eBay, $35
If you don't want to invest in the polishing station you can also get the same results by hand, been there done that... Just move on to 800 grit, than 1200 grit paper. Then as the polishing step use 00 steel wool with Mother's Polish. You might also need to use 000-0000 with the Mother's for the supper mega shine. Takes a lot longer, hours vs. minutes but you'll get the same results doing it all by hand.