I wrap trim in CF and am very familiar with the removal process. It is very easy to remove your existing trim. The shiftknob just pull it straight up, it will come off. There are a few wires here and there, but very easy to pull off. In regards to removing the trim, use a plastic scraper or drivers license. Do not use a screwdriver, it can chip your trim as well as your leather. Here is a link on how to remove it.
If I can be of any further assistance, let me know. Good luck.
Carbon Fiber Interiors for BMW Enthusiasts.