the purple stuff is all connected, except the top platform, so you have your regular ladder, and part of your tranny all connected, it is a 3 way folding piece that can be as large as you want but all pieces must be same length as that's how I drew it to fold, so all 6 foot pieces or 8 foot or whatever. The top platform can be connected with hinges at one point so it can fold up, then rest on the first rung when unfolded, or it can just not be attached at all really. The red stuff is all separate and can either be set down onto or connected with pre-drilled holes or bolts. Of course your red tranny can have more of a curve shape to it if you wish.
I hope this gives you some ideas for what you can do.