Ok, I glue the skirt to canopy and will rivet to the frame
I did glue the skirt to the canopy, waiting for the sika to set before I rivet to the frame. The glue fills the small gap between the plexi and the skirt. Looks like a cleaner finished product with no gap.
I'm 99.9% sure I'm not going to install the canopy release system. I don't like the handle coming through the panel and I don't plan to exit the plane in flight. It would be nice for removing the canopy in the future, not sure how often that happens...