You could use a canopy latch.

http://www.hobbycity.com/hobbycity/s...idProduct=4892

You would have to cut a small hole for the latch to sit down in and also add a pin at the front to hold the canopy in place.
I have done this with a few planes. Also quite a few planes come like this.
I have a 3DHS SHP with it setup like this.