I re-did all the stainless and aluminum on my 70 Cuda and it is a lot of work but it can be done and looks great in the end. I removed dents, took out serious scratches and even buffed the small and fragile grille trim. Also, I even redid my emblems on my '71 Challenger R/T.
For the stainless start by getting it straight which can mean hammering, filing sanding down and some repeat then you can buff it out nicely using the three different Eastwood buffing wheels for stainless (rough to fine) along with the right compounds and do keep them seperate - don't mix compounds on the same buffing pad and I bagged all my pads and compounds together to keep it straight. I used a 3/4" pedestal buffer.
For the aluminum trim, I started out by stripping it at lower pressure using glass beads in a blaster and then used the Eastwood aluminum buffing products and in the end used the Eastwood clear over the top to protect it and it has held up fine. Eastwood has different clears including crystal so pick whatever you like and you should be fine.
On the emblems, I kind of did this for fun on a driver and stuck with the single color black shaded ones and once again started off by blasting them clean and then painted them with SEM trim black and then mounted them (these were emblems with pins) to a board and then laid sandpaper out on a flat table and proceeded to sand the paint off the raised part of the emblem until I was happy with it using finer paper while not sanding all all the way through the chrome. I think I tried some buffing in the end too.
Anyway, you can spend a lot of time doing this and should get a good mask (probably full face) and gloves but it is doable and you can save some good money doing it. I'd start with a throw-away piece and give it a try and get the buffing motion down. I did lose a couple of pieces to the buffer and suggest you only have one pad on at a time to help avoid having the other side grab your work.
Good luck, hope this helped.
