Hwy Max, mmm good question, the way I've currently patched it is:
Live rack (MP2, MB1, Quadverb, Midiverb4, DCM200L, Desk) > 2 outside split stacks
Marshall 50 > powersoak > single split stack
MP2, MB1, TC MoneXL > Studio desk, subgroups 3&4 > B200s > Mesa P112s
The MP2 and MP1 (both US models) above the B200s are not patched. At some point I'll probably run the MP1 into the Marshall (bottom right input has been rewired as a line in direct to the phase splitter (aka how MJMP runs his)). I had to put the rack with the US MP2 & MP1 & B200s in between the studio rig and cabs due to lead length. Also I haven't wired up the EV 3 way TL yet. When I get my TS100 and DCM 2004L back I'll work it in.