Though it sounds like you are committed already, a reminder that for the cost of the BBK and suspension for the e92, you could buy a prepped track car
And the cost of race gas and tires....
Look forward to seeing you out there though. There is an event on Sat Jan 19th hosted by a forum member here that you should make it out to!
http://speeddistrict.com/item/events...anuary-19-2012