Hi MT,
Yes, I have mounts for the frame. I am currently using four brackets, two on the bottom attached to the engine mounting plate, and two that bolt to the fairing frame just below the handlebar grips.
These two brackets run in a Vee shape to a bracket that bolts to the downtube. I took a picture of the upper brackets, and the lower brackets are somewhere on page 1 I think.
And yes, I did make a bezel to hold a headlamp.
Regarding coat hanger and painted fabric, I used coat hanger for my original mock-up, and it’s very bendy and flimsy, I don’t think it would work.