I am in search for a 48" or 52" mower for a friend to use at his camp. He needs a rider with a comfortable seat because of his bad back. He currently has a kubota tractor with rear suspension, but it takes forever to cut the 4 acres being its for "Harry homeowner". I was looking for a used wright sentar or sentar sport with no luck. Anyone have a recommendation on a ZTR configuration that is easy on the back?