Reinstalled the bunk bed frame, I was going to buy a metal bunkbed frame and use that instead, but I already had this built from round 1 of the renovation, so I re-purposed it. It bolts to the U channel and will fasten to the walls and ceiling once I figure out the layout. I finished most of the wall paneling. I just used 1/2″ sanded ply, re-sanded, painted with a few coats of paints and installed with cabinets screws.
Re-installed Bunk bed frames 
Trim and ply in and painted 
Kid tested