Not trying to be insulting by any means but your price for a used 575 kit is high for the fact that a new 575 kit cost $10,495 with the tune. just trying to be helpful seeing that you stated you don't know a starting price. good luck with the sale. I'm looking for a 600 kit and if you where local I would make an offer.
ESS VT-1 550 silverstone E90 /// M3 - 6spd - AD08 - Spacers - H&R - AA exhaust - Primary cat delete - Custom test pipes - ESS tune - Lighted ZHP.