I'm going to expand my search from a 4066R to a 4720 as well. The used 4066R just aren't worth what they are asking, and I don't really want to spend $53K on a new one.
I found a 2013 4720 at a local dealer. Cab model, 1300 hours, self leveling loader and rear SCV. Theyre asking $29,900 which seems to be a little lower than what they are asking for on TractorHouse.
The ball joints on the rear 3pt are rusty, like they've never been used. The loader bucket is pretty worn, so I'm guessing it spent most of it's life doing loader work.
My other option is a unit 500 miles away. 2007, cab, 700 hrs, rear SCV, $32,500.
What do I need to to be careful of with used 4720s?