I discovered some grease, rust, paint and gunk remover called "Industrial Purple" sold at Home Depot. Much better than the "Purple" automotive cleaner and much cheaper. Wear gloves unless you don't want fingerprints.
Sounds like If it was me, I would buy steering oil seals, steering dust seals, steering bearings and PTO seal. I would also replace all other "reasonable to get to" seals and inspect the bearings.
If you get a hankering, I also suggest doing a Re-wire job when you paint the dash.