Not much wiring in outside walls, all wiring is from inside out. The walls are built off unit then assembled. A few wires get punched thru from inside for your lights or speakers, but no wires that I am aware run thru walls.Our BC has pretty much same bathroom plan and I like your idea, but wires on outside wall and hitting a stud are of a concern and likewise the wall behind toilet as to what holds screws in w/o pulling out?
I just screwed my mounts to the inside wall, yes it is thin but no issues. I figured if they pull out I will fix it somehow and make something work. However I have pulled this 5th to California twice and several trips other places, about 40,000 towed miles so far. Had towels hanging on those hooks while moving and they are as tight as the day I installed them.
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