Vacuumland is probably a better ask as people on there do amazing things with Kirbys. From what I've read though, a bench grinder with various grades of polishing wheel, and polishing paste and time, lots and lots of time!
If you have any old school wheel refurb places they may do it, I remember an episode of Wheeler Dealers where 'Owd out yer aaaand' Brewer took some minilight wheels and got some old school looking dude to mirror shine them up.