If the machine has been maintained I'd not worry about this one any more than any other of it's vintage. Yes... it does have a Kuhn bar which is literally the ONLY selling point for the machine. If they'd licensed the remainder of the Kuhn FC they'd have had a good machine.
This IS a modular bar and you can replace most parts as assemblies in less than an hour if necessary. Biggest thing is to keep oil in the bar and keep the CV joint greased. They don't like rock either... so if you have rock or rough terrain it's probably going to smash some modules and shoes on you. That gets expensive...
As far as the impellar conditioner... it's a lot better than a chevron with no rubber left. Actually, any studies I've seen on the subject suggest that impellars are a more effective conditioning system.
The 1460 Deere is the same basic machine as the 1360 except it has rubber rollers... and a gyro style hitch.
Just check the old thing over and make sure there's NO slop in the turtles. If it's tight it's a 1.5-2k mower. If not... 500 buck mower.