My spoilers work exactly like yours. I would assume you'd place some sort
of a quick-release contraption on your servo arm, and place them both on the same arm.

I was thinking of using something in my tackle box... a swivel link that has,
a quick-clip on one end. I believe it'd work just fine for a quick release,
and I could just tie the other end to a servo arm with a suitable length of Firewire.

I don't have any mini-servos yet, so I haven't set it up.

As for the canopy, I'm afraid I can't help you out on that one.
Probably just have to engineer one out of something.