Am demoing a used Encore Z48, 18hp Vanguard.no leaks, starts fine, runs great and quality of cut is nice.......and hourmeter shows 281.9 hrs(yes it is running when the mower is on). Belongs to a buddy who mows two props 2x mo. He bought it from longtime friend who owns local service shop, says orig owner residential 1acre, weekly since new.any ideas of probs to check for or probs to lookout for. Think I can get it for around $1500.00 P.S. New tires on rear and fully serviced ready for the season with extra set of blades.........what would be best blades, not bagging, and bagging option suggestions...I know it is alot to ask but think this machine could really help me make some money............and now I can pull it since putting S10 into semi-retirement.