hey_i'm_new- Claying *is* a good idea, I'm a big proponent of clay.
But for what you want to do I'd use a decontamination system.
tdekany uses the FK1 system, I use the one from
Automotive International - Valugard Product Line . FWIW I often clay while the acidic step is dwelling, but it sure does dissolve the clay quickly.
Washing with regular detergent (mixed verystrong), then again with Dawn (or P21S Total Auto Wash), then wiping down with rubbing alcohol, then wiping down again with Vinegar (let it dwell for a while), and then washing again might be a half-@$$ed home-brew version of the decontamination systems, but I'd get the real thing.
Generally, I don't use abrasive polishes unless I have marring to correct. But some products (e.g. 1Z WaxPolishSoft, 1Z Metallic Polish) are so mild that I'd use them without hesitation just because they're so user-friendly.
Some cleaner-waxes work well, including the All In One products (some of which are *very* mildly abrasive, but like the 1Z stuff I mentioned it's nothing to worry about).
FWIW I do the decontamination systems on all vehicles that I really care about (claying while the acidic step is dwelling). *Then* I inspect the finish and decide what to do based on its condition.