The epoxy took too long to cure last night (even with the 205, fast hardener) to make any more progress, so I came out this morning to put the glass in place. I used two pieces on each size of lightweight 1.45 oz cloth (the flexible stuff you see hanging off the sides). I covered it all with peel ply (dacron) which is the stiffer looking cloth you see in the middle.
After work, I peeled off the peel-ply and trimmed the overhanging fiberglass. Looks pretty good for a first effort.
I also mixed up some epoxy with some WS410 (microlight fairing filter) and filled the open end. I’ll sand this back to prove a concave surface to allow the rudder to swing freely while still providing a tight joint.