When I build an old kit or a plane from plans sometimes I have to go look at the ARFs of the same plane and find one of about the same size and buy one of theres. Last one was a little 60 size Extra 260 and I found a canopy from Segul that fit with just a bit of cutting. It was so much cheaper then the one I found at FS that I bought three of them to keep in my shop. Even looked good on the 4* 60. Looks like you may have to do the same thing.