I have a 3320, 2720 ( my giant lawnmower) and a Kioti CK27HST. All of them are good machines. The Deere's are more refined and I like running them more. Deere's eHydro is much nicer, the turning radius is better, and the controls are more refined.
The jump from 4720 to 5083e is a small one, but the size difference and maneuvering space is significantly different. I suspect for you the 5083e would be massive overkill. I have a similarly sized NH and around the house and barn it is bloody huge. I would look at the 4520 instead, maybe even the 4320. The hp will not affect your loader capacity. Realistically assess your hp needs. We always advocate bigger is better here, but pragmatically, it may not be needed.
I have played with the bigger Kioti's quite a bit, there good, and a bargain in price. I think they are solid, but having run the competing Deere's, I will continue to favor them, I think they are much nicer- especially if you get the cab.