We are thinking of storing our Van on a grain Farm for the Summer months next year, has anyone any solutions to detering mice from getting into the Van? I have heard Mothballs are good, and of course we will fit very fine mesh over all air inlets, what about the fire vent that is under the Van anyone know if this can have fine mesh put over the vent, not sure if we will have a problem, but would like to be prepared, just in case.