Accumulator, yes, our first idea was absolutely Meguiar's - as we'll do this together with the guy who is the importer of Megs to Hungary.
If we'll need deeper cleaning then we'll be using #80, but on surfaces which are still in good condition the #7 was a definite, natural choice.
I threw an email to Mike Phillips, who said the same, except he recommended NXT to seal. I'd used rather #26, but we'll try both routes.
Another approach was paint cleansing/old fashioned carnauba, because I have good cleansing lotion from Victoria Wax (Lite Cleanse) and Mothers (the "old" 3-step), and yet another is an AIO-type product. David Wyllie Sr. of Victoria Wax chimed in too, as he has experience with these types of finishes. Pure carnaubas always go hand in hand with lacquered wood, so I'll use the Victorias on the lacquered wheels, but obviously on the body panels too.
As we don't know what to expect, we will take our whole arsenal; armed with glazes, carnaubas and mild, rich polishes. Hopefully we'll succeed.
Thanks for the recommendations!