Spent quite some time trying to find other E46 swap threads, details, photos, etc. I haven't found a single technical photo, specifically of the motor mounts (and there seems to be quite a few of these swaps on E46s done).
Had some delay, waiting for parts.. ordered some 2J - E46 motor mounts. 15lbs massive steel mounts that didn't even align properly, and cost me a bundle. Returning them and fabbing my own. Will be welding 1/4" thick aluminum, should be stout.