I appreciate your enthusiasm but I wouldn’t veneer the bottom. That would look out of place. Sand it with 220 grit sandpaper. It should clean up nicely. I’m also not a fan of mirrored blades on a vintage title. I think you are better off leaving them black. Most of the scuffs on the top and rear of the backbox can be touched up with some semi gloss black spray paint. Your game is in good shape so it should come out great when done. Good luck with your project.

Sure but powdercoat. Side rails are a high touch surface and paint doesn’t hold up well. You could just polish your stainless. A nice finish really pops on classic games.

If you are going all in get the new playfield and sell the old one. Hardtops are a lot of work and don't look as good as the real thing. Personaly I would never install a hardtop if a repro playfield was available.