Hi,
Yes, the wheels took a few bumps! The front arm snapped completely and some bits went missing. It's still pretty strong though, the grey tube is made of steel, something I had left from the retractable landing gear of a defunct plane. If I keep it longer, my future repairs will just turn it even more into a FrankenMugen from Mad Max!
Sorry, I don't have the wing nor body shell (actually, I may have the body shell somewhere, but it would be in very poor condition).
The only Super Athlete I've seen around in on ebay in France, it's now at about 77€. I'll PM you the link, not sure what the policy of RCU is when it comes to commercial websites...
I'll write you about my Mugen, no clue what it's worth with the engine.
Cheers!