It's been a while... Haven't really done much on car lately. Had a nice 2 week winter holiday in the sun and all that. Good news is that I acquired a second spare axle. I disassembled it and it turned out to be in perfect condition. No more axle hunting then for gods sake!
The axle is from from '98 base model 106, which has had a crash damage. The right hand side wheel stub pin has been bent. I wasn't too concerned about it because it is the weakest link in the axle by some margin. I measured the axle from the mounting points to be sure, it turned to be perfectly square - no problem there either.
The center part will be cleaned and painted. The brakes from this latest axle are not usable, I have to select brakes from the other disassembled axles I have. I actually would like to put disc brakes as are in S2, but as I don't have them available I probably go with drums first.