Hello
i recently refurbished 4 bbs rs771 for my mk3 golf the lips were very badly damaged, i mounted the wheel on the car when on axle stands/ramp and run the car in gear around 3-4000 rpm and used progressively finer sand papers starting at 60 grit and finishing on 3000 grit then metal polish.
I haven't laquered them just use wax to protect, very time consuming but worth it
i'll be doing a post on this soon
g2