Hi Zimmer Zimmer,
Happy New Year and all the best in 2012.
If you post some photos of yr wheels on and off the car, this might help to generate some interest in yr swap.
I have a set of genuine 326m 19" [OEM E89 Z4 wheels, which will fit straight onto a e90 - wheels only I'm afraid so no tyres].
2 wheels are brand new [never been used] and other 2 had a cosmetic refurb [warranty claim on lacquer] so are as-new.
If you are interested in them then am open to sensible offers.
Either way, good luck with yr swap.