Replacing with an original canopy will no doubt restore original looks; I would hate to see mine break.

I finally stuck the entire canopy with canopy glue (no cracks yet) and have left the screws in loosely (not before strengthening the holes with slow cyno) and redrilling them. Then what happened? a week later the pilot fell inside the canopy..ha ha.. yeah the canopy was glued tight; however after juggling about a bit I managed to seat the pilot in his place, drilled a tiny hole from inside the fuselage and poured cyno into it. phew! ok so far.