Looking for opinions...I have a chineese trac Ag-King (Jinma 20 hp 2 cyl )that has been a nitemare.. The dealer I got it from has a Yanmar F22A w/780 hours on it. Has more HP than my tractor and right now runs far better than my tractor, but the number of hours on it kind of scares me.. I can't find anything on the F22A. How durable are these tractors and what is the average time to overhaul.. The Chineese tractor has really scared me about the foreign tractor market..