While I'm not a Freightliner tech, I did some hard time at a DDC/Allison shop. I haven't anything useful or relevant to pass on, but am interested in your new project, and how it differs from Navistar multiplexing. Did you try to contact Joseph Albert over on the west coast? Look him up through iATN, he's a head instructor with Daimler Trucks, and may or may not be of any help to you. Another possibility is Ken Henderson at Waterous Power Systems in Calgary, though he didn't teach Freightliner stuff per se, he could direct you towards somebody with good info.
BTW, I tried following your previous link about Linder Tech North, but all it had was info on the seminar in the Toronto area, I think. Are you scheduled/committed to coming up to Calgary in the spring?
Back to your M2 stuff, I have a couple contacts at the local college, one of whom stays somewhat sharp by putting in time at the FLLC dealer, I'll try to pull some info from him. No guarantees I'll get anything, though!