First, Order a new canopy.... Then use 1/4" barrel type rare earth magnets and r/c 56 glue/pacer canopy glue. (Available from magnets "R" us on the net.) Cut canopy to fit then use maybe one magnet per 1" to 1 1/2 " all around the canopy on inside, one outside at each position. The r/c 56 /pacer canopy glue cleans up with water and is THE BEST way to glue a canopy to anything. Wood, foam, fiberglass whatever. And will never hurt the surfaces being glued to. Also if there is some residual glue left over it can typically be rubbed off with your thumb. Also roughing up the area to be adhered is a good way to assure complete adhesion. Real sticky somewhat rubbery finish. Works awesome! If you can't find the magnet company I can find it and list it.

Tim.