Andrew,

I am looking forward to seeing the finished airplane.

Good Luck with the paint. What, if anything will you use for primer? I am sure you know this but for some of the readers that might be new to painting, use light coats with the paint on those plastic pants and cowl. The thinners in the paint can sometime soften the plastic and then cause distortion.

Man, that Saito is light. I am messing around with an old Enya R120-4c and that thing weighs in at 2lbs 1 3/8 ounces (944 grams). I'd never put that one on my Extra though. Still planning on the Super Tigre 90 for that. Even it (muffler and all) weighs in a little more than your Saito 125. I am impressed. I might have to look into one of those when I save a few coins.

If any of the scratching and such of your canopy is mostly on the outside, you could give some plastic polish a try. It can be bought at the auto parts store. One of the intended uses is for polishing plastic head light lenses and such. Use a soft cloth and a little time and you can get it cleaned up a bit. Heck, if the canopy is still removable, you could polish up the inside just the same.

I have no idea which would be easier/cheaper polishing what you have or buying a new one.

Anyway, Good Luck...............