I can't make my mind up on what style of wheels to go for though, part of me wants to keep it understated and go with some banded steels, but there's another part that thinks a motorsport style would work? It's got to be a 90's sort of wheel though, something like Zenders?

Also if you haven't seen it before, check out Bamse's Turbo Underpants on YouTube, they're Finnish but have good English subtitles, plus his builds are mental.