Poor thing. This Maytag may take the prize for one of the most worn down tubs. Cosmetically it's in really nice shape, but to John's point it would need a full rebuild with a donor tub and Power Fin agitator.
Seller also has other really nice vintage appliances for sale. The combination Hotpoint refrigerator is a gem.
Since the seals are compromised, I think corn head grease would work in the transmission since it basically turns into a gear oil when mixed around but turns back into a grease once it sits.