Haha Laitch :D It is tricky to ask for an advise right after the tar snake man pissed you all off :)))
There is no such thing as an ideal response, if I would have one, I would just go ahead and do it my way. That never helped me in the past though and I am very much willing to listen to the advise of the more experienced. I can not eyeball the clutch, as I don't have the patience nor other positive traits needed for such thing, and I do not trust myself to make a tool, that would be precise enough for the task to be achieved. The lathe place can probably make me any shape, I'd need as long as I have the measurements, but the DIY tool, I have sent in my previous response may be this complicated, because the end of the K100 rod is this much intricate. Since the K75 rod is a lot simpler - basically a rod with a wide washer, I might be fine, or actually better off with the simpler tool. I am not a bike shop nor I will ever own a K100, so I might not need the other tool, but if you guys think, it makes for a more precise setting, I'll get that fabricated...
Now to the bearings - the only way, I have measured free play was with the swing-arm out and me tugging, pushing and twisting on the protruding inner race. That has got plenty of movement either way, but as Gryphon said it most likely needs preload. I must admit, I have watched the Harris videos previously till the disassembly finishes, now I have watched it all, and that answered my question - so before taking the transmission off, I have put the swing-arm back temporarily and tightened the pin to the specified 10Nm, and all the play was gone, the swingarm had only specified up and down movement without any binding, crunchy operation and so on...