RE: Please Identify my CF-5/F-5 Prop Jet
If it has the big cockpit, its likely built from the Bob Campbell/ RC Specialties kit. Long out of production. Pretty rare to find one anymore. Good flying plane.
Yeah, it looks like you are going to have to make your own canopy. Perhaps ask around in the Scale and Scratch Built forums - maybe some of the older members have one of these kits laying around and might be able to pull a mold from a canopy for you