I'm still studying at University but for the last 8 month I've been working non stop at
https://ajwsl.co.uk on both servicing and polishing.
Your right about the polisher its a few thousand pounds bit of kit plus then the 8 bar streamer and all the ultrasonic cleaner and dyer
As for the finishing its all down to speed and compounds, the brushing finishing depends if you working on vintage or not.