Actually, rebuild may be overexaggerated. Our experience with the 9x00 walkers is around 1,300-1,400 hours is when we start spending on wear parts, such as cylinder bars, shaker arms, walker blocks if they have not been greased amply, some of the chains and belts, nothing major. Normal stuff. If your dealer backs it up as ready to go, then you should be ok. Up to that hour range, we never spent a dime or had a problem with any of our walker machines. We had a new 1994 9400, put 1,300 hours on it, then traded for a 1999 9410, put about 1300 hours on it before we had it gone through by our dealer, spent maybe $5,000. It now has about 2,100 hours on it and nothing major on the horizon. Just grease the walker blocks everyday. We cut wheat, grain sorhum (milo) and soybeans.