I am trying to reclaim my hayfields. The conservation agent wants the fields mowed frequently to help dry them out and keep the weeds form going to seed. My problem is that the fields are boggy. Because of the Vermont mud season I never can get an early start mowing and then because the grass is long the fields do not dry out till August by which time all sorts of things have gone to seed. My problem is this: I can get through the fields to mow but I rut them significantly. I have a MF 1428 with a 5ft woods bushog on the back. My tires are Front: R4 25 x 8.50-14 Rear: R4 12.5/80-18. I want something higher flotation or in duals but cannot find either for this size tractor. I have no problem buying new rims and tires but cannot find them to buy. Anyone have any thoughts?