Have you asked your local dealership for a copy of the schematic(s) you need? Most of them will make a copy/printout of whatever you need... that's all I can think of at the moment.
As far as wiring changed between LHD and RHD - shouldn't be a difference. I can put up the schematics for the E36 from '99 for you, see if that'll make a difference. If you look through the '00 E46 schematics on the WDS you d/l it doesn't have most of the connectors you're looking for... so I'm not quite sure where to go from here other than asking the dealership. I'll see what else I can find after I get back from lunch here in a couple hours.
Best of luck!!