4point6- This is well worth doing a search on as we've gone into ss paints in detail a few times just recently. I don't mean that as a blow off I just can't repeat all the info (that I typed in the last few days) again right now.
Short version: I often prefer Meg's products as their "trade secret oils" work well on ss. #80 then a carnauba would be a simple approach. I tend to prefer carnaubas on ss, not sealants, but that's just me.
Don't be *too* worried about the paint/pigment transfer, as long as you're using mild products the bulk of it oughta be oxidized paint anyhow. All abrasives will remove paint, but mild ones don't take that much off, and GM used pretty thick paintjobs back in the days of single stage. Just watch it on the high points and other areas where it might be thin and work towards "improved" as opposed to "perfect". Better imperfect original paint than a need for a repaint.
You might consider a glaze/Meg's "pure polish" between the polishing step and the LSP, it could hide some more imperfections and benefit the paint ("feeding the paint" with oils etc. isn't total BS with single stage the way it is with basecoat/clear).
