Installed the seal flange on the sub-panel, modified the support ribs, and fit and match drilled the forward top fuselage skin. I took the path of most builders and cut the ribs off and relocated them to accomodate the avionics that go in the panel. I used some printouts of the new Dynon Skyview EFISs as place holders. They are about as large as any EFIS I'm considering and even if they don't get manufactured and shipped on time, I can use about anything else.
