Pacer 560 is still available. I got some recently from Tower Hobbies.
Right Pacer 560 or RC 56 will work well use a small amount, after it is dry mask off the canopy, then use a piece of 360 sandpaper to scuff up the edge at about 1\8 to 3\16 inch, I then use a smal filet of SIG micro ballons to make the fair-in really nice, you can then sand and paint the area, if you are careful you can spray the clear after all of your colors over that are and the entire canopy and wet san it in with 800 paper, you will not be able to see or feel where the clear stops and the painted part begins as far as a bump there goes
Randy