Update: 10mm and 15mm spacers sold.
Got these spacers from a friend who was running them on his 535. Never installed them on my 335, and now am finally getting around to cleaning my garage.
When the shop pulled them off his car, they marred up a few of them. I think it could easily be fixed with some creative smoothing (sanding, etc), or honestly could probably be run as is. Pictures included below. Please don't hesitate to ask me any questions.