About how long will it take me to polish two of these hood supports? They're 1 x 1/2 bar stock, about 38" long. I've got a buffer motor, sewn and loose buffs and white, tripoli and jewlers' compounds. I also have an electric random orbital, an air DA and a whole bunch of sandpaper wet/dry from 220 to 2000.

I'd prefer to do most of it on the buffing wheels.