The ZHP knob is beautiful, I just have a huge problem putting anything with an ///M logo on a non- ///M vehicle. If it was an ///M sport package equipped vehicle it's another story, but you're right, black leather, OEM, and weighted, the ZHP knob is wonderful.
This is the factory weighted knob i spoke of, not sure what car originally came in:
BMW Weighted Leather 5 Speed Shift Knob E30 M3 325i 325IS 325E 325ES 318i 318IS | eBay
again, you could bore a deeper "hole" in the knob and allow it to sit lower on the stock lever as well to get it to sit shorter. Did that in my VW days, worked pretty good I must say.