usersmanual wrote:
if you really do not have a inside switch you don't need to move it
just find the 120V wires where they run in the MH and simply interrupt the hot lead via wall switch and leave the one at the tank on;; no need to be trying to wire a 3 way switch
You still have to run the wire/s from wherever the hot lead is located in order to install a switch inside the MH.
Since you are going to run some wires anyway, (which you will have to) you might be better off looking at installing a three-way switch.
If the OP knew exactly where the hot lead is located at the precise location that he wants the switch installed, then what you've proposed is highly feasible.
All the best.