My spoiler went up one time when I stalled. Then another time I had just started it up with the spoiler in UP, and as soon as I started the car, it went down for no reason. Anyway I wouldn't worry specifically about the spoiler because it seems that theres probably one main cause for all your problems. You have a real early crossfire too.

The water in the gas tank could be a very real possibile cause for the stall, and the wing and radio could just be 'standard' side effects of a stall. Try adding some of that water out stuff to the fuel tank and run it for a day. Even if you've gone through a few tanks, there could be water in there. It's not as unsual a problem as you'd think.