Tried ti edit, but it kicked back errors.
Oh, silicone would be my choice for mounting the electronics, its electrically nuetral, and has shock absorbtion properties too. I would put a dab of it where you mount the piece, and then tape it down until it cures. after about 4 hours it should be cured enough to remove the tape, and 24 hours later 100% cured. It cleans up easy too if you have to redo it.