OK, I need a self propeled walk behind with rearwheel drive for my very hilly 1/2 are around my house in New Hampshire. I found a dealer selling a traded in high end Murray walk behind it has a OHV Kawasaki engine it can mulch, discharge or bag. Has a three speed rear wheel drive system. Stamped steel deck, Mech. says got it on trade it is a mid 90's unit and wants $100. What do you guys think?