I decided to get started on the storage platform tonight. The goal is to be able to fit the small action packers underneath the platform, and for the platform to be able to store heavy stuff if needed.
I quickly got to work making some cardboard templates and came up with this design. It has little tabs that fit down inside the slots for the double decker deck.
Then I began to worry about these panels rubbing the interior trim pieces over time. And I was worried about being able to keep the boards vertical with weight on them. So I scrapped that design in favor of one that has worked well for me in the past. I use unistrut to make a frame, then I hang sheets of plywood from the frame. It's nice and light, easy to install and deinstall, and adaptable.
I didn't get much done because I ran out of unistrut and had to get more. It's anchored into the floor where the double decker was anchored. These are tiny little 10mm bolts holding it in. I'd like to spread the load more, but really the bolts are just there to keep it from moving forward and back. I plan on tying in to the 2 nearby tie down loop mounts for more triangulation. More to come in the following days.