We love our 2004 2350 with the rear corner bed - except for getting into and out of said bed. I've put on a few pounds since I was born, and getting up in the middle of the night for a trip to the loo is, well, difficult.
My wife sleeps next to the bathroom wall and I sleep next to the outer wall, due to needing CPAP and O2 at night, the tubing for which is easier to run along the outer wall overhead cabinet. I try not to disturb her in my wiggling, bouncing transition from lying down to standing up, and I've decided to mount a grab handle to the interior wall to assist me in getting my lard girth out of bed.
The question is, how to mount it so it doesn't just rip out of the wall? As you know, the wall itself is like a 1/8" thick piece of wood paneling with about a 5/8" gap between the bedroom and the bathroom wall. I'm not too keen on those little anchors that you punch into the wall and drive a screw into; I think I need something more substantial. But if they will work, what kind is best?

I'm not enough of a carpenter-type of guy to pull the wall open and put a backing plate behind the area where the handle will go (It's 10" x 1" plastic and mounts with two 3/16" x 1" oval head screws at each end) so I've cut a piece of 1/4" x 2" aluminum into four 4-1/2" pieces -- two for the outer wall that the handle will mount to, and the other two for the adjoining wall inside the bathroom to help distribute my weight. But I'm very concerned that I will not be able to get the holes lined up for the four 3/16" x 1-1/4" machine screws (one near each corner) I would use to tie each of the two plates together.

Any suggestions would be appreciated.
EDIT: In looking at the situation again, I'm wondering if the best location would be right on that 1/2" trim strip to the left (rear) of the narrow panel between the bathroom door and the bedroom wall. In tapping that area it seems like there is a fairly substantial "stud" at that corner. I just don't want to break anything!