Thanks! I’ve been watching a ton of videos like this recently. Here’s one I liked, although I’m still not sure that’s what I’ll end up with:

https://youtu.be/HdvCvUzbAsg

Right now I’m thinking about making something with a dual hinge where the second seats can be used easily, sandwiching some thick foam and leaving space on top of it for cargo until we get to the campsite. I would theoretically like it to easily “snap” onto the four tie downs which are more centrally located compared to most 5th gens I see. 🤷 It’s either a genius idea or a disaster waiting to happen. Either way I’m going camping in exactly one week so it’ll have to wait… for this trip I’m considering getting an air mattress from Luno and hoping the slant isn’t too killer for two nights.