Don't do it. The E46 is not as (*cough*) simple (

) as the E36. Even then, each time you take out interior peices it makes them that much more fragile. I've learned you only want to take interior peicies out only when you absolutely have to. Plus the Bently manuals aren't too great with instructions on interior imo.
If anything take it to a trained BMW person that knows exactly how each peice comes out, and has done many of them. This way you'll prevent any unnecessary bending of parts (which makes them fragile).