Dana,
I'll check mine out when I get home next Tues and see if it's possilbe to "form" another one. Is the whole thing supposed to be clear or just some sections of it. I have done several old Monogram canopies, Wildcat, Dauntless, and Corsair by the method I discribe with good results after a few tries. If just the "side" windows are suppose to be clear, maybe you could make a new side from clear sheet plastic. It looked like the crack ran through the left side but I couldn't tell if it wend down into the "bulged" area.
Only other option is to "beg" Monogam for a replacement part!