Bought my '07 Z4 M coupe a couple years ago with ~49k with cinnamon interior. Its definitely not stock but very happy the way it sits. I'm right with you with having a toy for myself. Currently she is garage queen due to life priorities. However, I can't imagine selling her.
One down side is...
Great build Pizzaiola39. Thanks for paving the way to for the JTRD platform. My plan is to get the Rebel Stage 2 suspension once I get my diesel. Dana 60 axles will be a couple years out.
What gear ratio did you end up with?