Good tutorial and I have felt your pain, sucks dont it? Just a suggestion that if you included the part numbers it would be that much more easier to follow.
As a fitter I've had bearing journals stuck on shafts so many times its not funny, if its rusted on cut it off, an engineer told me that rust in that area can excert upto 8,000psi and you have no chance with a press.
Also some bearings are heated and the shaft frozen in liquid nitrogen to make a very tight fit (bearing is actually smaller than shaft) but I dont know if that is the case with these drive shafts.
The way I do it is to cut like photo at an angle but opposite side as well, you dont need to cut right through to shaft but close. Then mid way between each cut weld a bead from side to side, this shrinks the journal and sometimes cracks the cuts, then hit with a cold chisel in the cuts, they come off eventually and minimum harm done. if you have a bearing cap stuck in a hole (brake rotor HQ) a weld around the bearing surface will shrink it and falls out.
Another way is weld reaaaaly hot and melt away the the material but not right through! and then SMASH with hammer!! (worked when my grinder shat itself AND I dropped my cold chisel 7 stories up)