I installed the secondary spar and front spars in the usual fashion.
The TE is made from two sheets (top and bottom). The bottom sheet is tapered to match the curve of the top of the rib. The top sheet is glued to the ribs and bottom sheet. Before gluing the top TE sheet in place, I CA’d a strip of 1.4OZ fiberglass to the underside, to give the TE a little more “hanger rash resistance.” Because of the droop, and angle between the top and bottom TE sheeting, they don’t line up (looking down). You can see the mismatch that looks like the top piece is warped. I added some filler strips to even them up before putting the cap strips on.

I put an aluminum square tube “sleeve” around the main spar at the root. This reinforces the spar, and will handle the stress of a bolt that will hold the wing on (passing through the sleeve, and an aluminum dihedral brace that slips inside the spar. I also made an aluminum root rib, to handle the stress of transferring all the loads to the main spar/dihedral brace, and serve as a strong attachment point for the rigging wires.

Next steps are to put the strut anchor blocks into this structure. Although the ailerons are on top, I planning on having scale pull-pull wires that drop down to and run back through the bottom wing. To avoid the hassle of connecting cables to servos in the fuselage (which I did with the Pfalz DIII), I plan on putting the servos in the bottom wing near the fuselage, terminating the cables at a bellcrank, with a short pushrod to the servo. This means a door or two on the underside but easier to assemble at the field.