Old skool mock-up...
While I wait for parts, Im mocking up the rear fender / sup-frame - the old school way.
The idea is to make a fender out of thick aluminum plate so its structural and can mount a small rack on it (shown in previous post) and a plastic dual sport fender / brake light from Acerbis. Heavier than a plastic fender, but lighter that a tubular sub frame.
I made a flat pattern out of carbboard and bent it up and taped it. Took a few tries, but I think I've got the shape about where I want it. Now to model it in CAD and create a real flat pattern and then have the part made.
Looks a little crude, but you can get the idea of how it will look......