So I have a b2710 with a Curtis cab har front and back but soft removable doors. I am tired of not seeing and being cold, big guy small cab cant put to many layers cant maneuver in cab. Any suggestions on a heater for it? And wiper looking to go cheap as have had a few unexpected expenses but it is 20 deg and we got a foot of snow last night. And still snowing on the mountain here. Any ideas or good and bad about which ones or what size to warm it up and wipe away. The cab. Came with wiper motor in it but its junk dosnt work, and no arm and where arm connect to motor was. All stripped. Any on amazon worth buying? Thanks in advanced!