@MonicaCellio Update on
that, BTW. I've designed and am building one that sacrifices "components ... smaller than 4' X 8', if possible" for simplicity of design. The components are going to be pretty heavy (~50 lb. for 1/4" plywood panel + 16' of 2x4 frame), so I'll just need to make sure my kids get big enough to carry them before I age out of that task. :) Eventually, I'll write up my plans and post an answer.