I re-assembled the outer tub using the soap ring as a height guide, secured the upper part of the cabinet, crossed my fingers, and pulled the knob on spin.
To my relief, it spun up quickly and quietly. So quietly in fact, I did a double-take to check if it was actually spinning - I wasn't prepared for it to be THAT quiet.
So that's that! Two separate socks, that's all it was. Two socks in the wrong place and this washer was rolled out to the curb. I wonder how many others have met a similar fate?
Now a question for the experts:
I'm going to pick up some calibrated wood blocks from my father to set the correct spacing on the upper tub cover, so I wasn't too worried about reassembly when I put it back together, as I knew it would come back apart again. When I do it for real, is there any advice on how to manage that 36-year-old rubber seal under the stainless band? Are they typically OK for re-use, or do you just replace them as a matter of routine? Any special tricks to ensure a good seal once they have been removed?