E93 19 inch alloy referb?

[JetskiJezz]

I'm sure this question has been asked and debated 100 times over, but I couldn't find anything definitive.
I am just looking at buying an E93 with a set of 19 on it, all of them got mine scuffs and curb marks around the outside.

I'm well aware they need to be diamond polished and can't stand the ones that get a cheap refurbished job so I would like them to look OEM.

Does anyone have any experiences, good and bad with sorting out? Also some idea of how much I should be allowing to get all 4 done?

I know that there is a company over at Woburn Sands (near Milton Keynes) and wondered if anyone had used them?

Whilst I'm on the subject it looks like it needs to new rear tyres, any recommendations and costs?

thanks