I know they are in Florida, but they have done a turbo E36. They could help ya out on what you are looking to do engine wise.
Hope it helped,
P.S.: Keep your plastic bumpers! Go for the sleeper look! They will hear you comming but they will have to think about it! He! He! He!
Randy(empowerd), Kevin(straight_6), and I (Dave aka:'88 325e) started up Bimmercruize '01. Bimmercruize '02 is on Sunday August 11th! So if you need details about the show please contact us!