The deck is looking good.
I think the biggest dilemma with the wheels on the decks is the misunderstanding of what they are for.
They are not gauge wheels.
These decks are intended to be suspended, hanging on the frame of the tractor.
Look at the wheels on a 1861.
If you were to use these wheels as gauge wheels, they would last about three hours of use, before they were ripped off.
They were intended to hit occasionally, if there is a hump in the lawn.
This tractor has gauge wheels on the deck, the deck actually rides on the 4 pneumatic tire/wheel assemblies.
Those wheels have needle bearings, grease fittings, and the strength to carry the deck.
Even this deck is partially spring suspended so some of the weight is on the tractor frame.
So adjusting the wheels correctly will make them last far longer.