Thanks for the answer Steve, the desire is to have a 3D effect, the model is large enough to show it off whether or not the canopy slides. Even if I secure the canopy in place (not sliding) I plan on separating the windscreen from the rest of the canopy to achieve a two piece look.

But yes, I've been thinking about a sliding canopy even after watching some youtube videos of the guy struggling with his Corsair canopy.