My Gravely 1534 Mini ZTR has finally gotten tired of constantly having to fulfill it's maximum potential ( I like to run full tilt) and has dropped the clutch. It has been in service for 7 tears, and I have replaced everything on it at least once, excluding the Kohler engine and the deck. To replace the clutch means a sizeable outlay of cash, and I'm wondering if it's worth it. Am looking to go to a larger/better/bigger cut mower, and have been looking at the Big Dog. Any Advice?