Alright!! Really looking forward to this.
If the M is anything like the standard Z4, install of the supercharger bracket will require you to either raise the engine or go the route it sounds like you took - removing the frame pieces. I unbolted a motor mount and raise the engine with a cherry picker. It was very easy with the right tools, but I understand not everyone has a cherry picker available to them. I think you can use a jack and stands if you don't have access to a cherry picker.
Congrats on being the first VF570 on the forums!!