Question: Somebody sprayed gloss white over certain sections and feathered them in... and the rest is original white very slightly yellowed in areas. I like OG paint! with patina!

So the newer gloss white (auto body shop spray not rattle can) stands out. I like original paint. Want the original paint below back. this is only in small areas.

How can I get the newer gloss white off? high speed rotary buffer with some kind of wet sand? tight areas so should I buy a smaller than 7" machine? any ideas? thanks