I am assuming you will need the guide rails as well as the slide rails correct? Ill give you prices for both anyway. From BMW, the guide rails run $82.32 a piece ($176.16 plus tax for both) Ill do $70.00 a piece (shipping will depend on size). For the slide rails, BMW charges $36.80 a piece ($78.75 plus tax for both). I will do $30.00 a piece (again, shipping will depend on size. For all of them from BMW, it would be $254.92 plus tax. Ill do all of them for $220.00. If you do want them let me know and Ill provide you a detailed invoice showing what you are saving and Ill check availability for a time frame.
Jay
Jay