I would try to post these up on bimmerforums. You'll have much better luck with the E39 crowd. Simply a suggestion.
S14.NET O.G. s52 E30 ///M3
Mike Rad boosted avus e36
E46 ///M SMG
Currently M-less and on the hunt for a low mileage 997 GT3.2 !Herro Rennlist