Have a set of 17x7.5" rota rbs and a set of gorilla tuner bolts with key for sale. Only have ~6k miles on them. wheels are still like new. cleaned frequently with gentle cleaners. Initally bought them because i didnt have to buy tires (215/45r17), and looked way better than the cheap drags that were on it. As a new mini owner, i was unaware of the rear control arm/camber issues, especially of those that plague the early cars (mine is a 2002), and have since burned through a set in the back. The fronts still have ~75% tread, the rears are worn, but not gone. $500 firm. Can meet at a reasonable distance.
I have these in the dark chrome color, really, really love them on the MINI. Wish I had the $$ to pick up this second set!
Stock S size on mine was 16" & still is. Winters wheels are 15". I really like those wheels & am quite surprised no one has bought them yet. Good luck with your sale.