[TSM330i]

I just got a response from one of the two other supercharger companies I listed above, who at their request shall remain anonomous, just purchased a 328 for testing.
Yes, again waiting.

I seriously looked into purchasing an M3 and parting out my car or using the parts that I could from my car and it'll still cost me over $30K to do similar upgrades to the M3 that I have done to my car! Not going to happen.
A 335 would cost me about $15K, so it's not worth it either.
I'll just stick with my 330 and see what comes.