I fixing to build one of these. I have a K181 and a Hiem-Warner pump sitting around doing nothing. Got some parts coming for the pump. Gotta get some pullies and a belt. Rig up a gas tank and a place for the battery. Also a lever to operate the pump. Stay tuned. Depending on parts and weather, I'll be working on this. Just think about a two wheeled dolly, this will be similar. It will be a temporary thing, as the pump will make it's way onto my 108 Cub this Spring.