I had to replace my canopy after an unfortunate accident during building, when the gas strut failed and the canopy continued around to smash against the side of the fuselage. The job wasnt as bad as I expected, cut the inside layups to release the plastic, popped out the window, roughed up the edge of the new one where it would be encapsulated in glass. I used clecoes and flox to secure it to the frame. Layed up 2 layers of bid over the inside to finish. I used duct tape to protect the plastic from epoxy.