I'm using mine for the seventh year -- 2168 hours. I've had no issues with the coolant temperature on this engine. The radiator fan is reversing so the screen stays clean. This engine has plenty of power for a 60" deck. I can pull the rpm's down when mulching wet heavy leaves but seldom in grass.
I replaced a hydo pump seal a couple years ago and a leaking hydraulic wheel motor last fall. I also replaced a fuel shut off solenoid last fall. I change engine oil at 250 hour intervals and don't add any between changes. I've replaced one alternator belt and one deck belt.
If I could find one with the hours that you stated for $3000 in this area, I would take it.
Dixie Chopper XWD3500-60 - Wright Stander X - Echo SRM 2100SB - Echo PAS-260
Echo PB-650T - Echo PB-770T - Echo HC-1500 - Shindaiwa T2500 - Shindaiwa PB270 - Shindaiwa PS344