I picked up the 440b and it runs and works great. The only down side is the steel base to seat is rusted an seat is not bolted in properly. Does anyone know if I can buy preformed steel replacement parts or will I have make my own? The rest has some surface rust ( which they painted over) but all in all very solid. I have the feeling someone parked this outside and just let water sit in cab area. The flor and controls all seem solid as well. It is just the seat area that needs replacement. Thanks