After getting some replacement F-6111 ribs (Vans instructions are VERY misleading here) and consulting the forums, I beveled, fluted and drilled the slider ribs to the inside aft canopy and clecoed them in place. They look like they'll never fit, but when you start drilling from the bottom, they fit almost perfectly. If you cut them at all, they end up too short (lesson learned!). I'll debur and prime them later.
I started working on the seat backs by cutting the bottom hinges and drilling them to the seat back skins.
