Thanks for your support. Just a bit of an update - I attempted to test glide the thing in the garden a week or two ago. It sort of glided a bit but would bank and dive to the left. I thought I'd be able to make some adjustments to get it flying better - that is until a particularly nasty landing sent it tumbling and snapped one of the wings. It's still hanging on in place, supported by gravity but obviously is now even less airworthy than it was before. It will now be left to sit pretty on my shelf.
But this does leave me wondering, how common are these sort of accidents, and are repairs something most would even bother with? I imagine to fix a broken wing like mine would require tearing off a good bit of the covering to get at the balsa inside, gluing whatever needs gluing and then doing the whole covering and painting process over again on that part.