Doesn't look too hard (famous last words!) it looks like it would all clip off with sufficient persuasion. I woudln't midn betting there is some glue involved in keeping it all in place though too, I really don't know though.
I am told on good authority that there is no glue, it just prises off. (I am looking at E46 cab's at the moment, and will be wanting to change the trim to wood, most of them have that carbon fibre cube effect stuff).