I did the repair as you suggested and more. At this point it is no longer burning between the screw/pcb/spacer. The pillar/spacer still gets very hot if tuning more then 10 seconds in cw. For me it is not a issue as i never need ten seconds key down.
73 marc hs0zju/k4hyz
If it gets hot, a foil has been damaged on the top or bottom or the washer is high resistance (perhaps anodized or perhaps corroded from humidity or heat).
The spacer connects both on the top foil and bottom foil, which are wide for RF current.
Unfortunately you have to drop the front panel forward and slide the tank assembly out to redo much more. If it gets hot that fast, there is still a connection issue there.
Another faster fix might be to install a wide copper or brass strip from the outside stator connection stud of the loading capacitor to the band switch common terminal. That would divert some current to another path.
I would do something, because there obviously is still a problem there.