Nice Find, Fred!
That's one beautiful GE. And having the attachments makes it even better! Congrats!
As for the polishing, I always use Mother's Mag. Usually with terry cloth, but sometimes steel wool, depending on how bad the finish is.
By the way, I noticed a Royal/Electro-Hygiene rug nozzle next to the Hoover nozzles in the picture. If you don't have any use for it I would be willing to buy it from you.
Thanks,
Jeff