The plane in the photo was built by Dustin Dutcher from my kit. Dustin built the cowl from balsa and his own imagination.
The cabane struts are modified with a little platform that the top wing sits on, with nylon bolts from the top of the wing, into threaded holes in the platform. When I built mine I simply put a sheet of thin plywood on the top wing center section for the bolts to tighten against, although you could do it however you like. I also changed the location of the plywood chin plate and modified the bulkhead length to match. Another change is the wing leading edge. Use a 3/8 thick balsa stick for the leading edge.
This plan has some significant drafting errors that you need to be aware of. The top of at least one of the bulkheads is not drawn right. I have corrected it in my kit. Also, the wing ribs do not match the wing saddle. I have corrected these details as well, so the wing will fit the fuselage. If you see something that doesn’t match the plan, stop for a minute and think it over. The parts will build a good plane, but it’s not going to look exactly like what you see on the plan.