I'm sure we could figure out a way to make that work. Switching between vent/defrost is a function of vacuum. We could either cut up that control box and have just the vacuum switch poking through (a custom made panel would be needed for this), or, just find a different spot to stick it. I'll have to think of how we could set that up..the other part would just be wiring the fan to a toggle switch, and leaving the heat cranked hard over.
