Hi ;
If you have a VAC-U-FORM machine then your path is clear .Sand that canopy and associated pieces until smooth .Leave the frames intact .Then polish them with NOVUS system Till they shine . They may not be clear but so what .Now lock them down to the Vac U Form platen ( base ) with non oily clay.
Be careful not to spread the pieces from side to side.Use the best plastic sheet you can find .Not Styrene but Butyrate ,Acetate or other . Now heat , Vac , and cool . You should get nice pieces that way , And they will be thinner and will allow you to pose them better too .
I have a ship model that had a clear deck ( a carrier ) so you could show off the hangar deck .Well it was kind of foggy right out of the box .The harder I tried the worse it got . Something about the clear plastic . Finally I was forced to cut windows in the flight deck ( the grey one ) and then carve and insert windows made from C.D. Jewel cases .
Of course you cannot do that with an aircraft canopy .Good luck with the Vac forming !