Oh to be 36 again as I'm exactly twice your age. I wish the AG repair information available on the internet was available back when I was employed by a JD dealer('66-'87). This would have made my life easier while I served as a dealer service manager for 13 yrs.
In looking at the pictures I noticed a lot of the welding on and near the torque tube looks to be to cold. May want to check that out before lifting heavy loads.
On the hose you might want to see about fittings other than the straight male ends.