I got the worst piece in pretty good shape for polishing I think...I'll see what it looks like when its shiny again. I just used a piece of 3/4x1/2 wood as a backing piece and parts of my vice and some flat bar to get it straight and get the dings out. There was a bend that I straightened by clamping the trim between 2 pieces of the wood in the vice. The trick is to knock down the high spots and raise the low spots such that you can knock them flat with a file from the top side. The hardest part was getting all the low spots high enough that they could be knocked down. I then hit it with 80/180/320. It goes pretty quick. I'm onto finer sanding and polishing now. I used to have a bench grinder but I used it so little and it was in the way. Now I'm on the fence as whether to buy a dedicated polisher or just get a bench grinder and mount the polishing wheels. At least I would have both in the end.
ps went with the 8" polisher as it has more room around the wheel due to the longer shaft.