I had to spend a summer in a wheelchair after foot surgery, I hadn't thought to cosplay as Xavier though.
It's crossed my mind a few times, but I just didn't have the cash to do anything...
But yeah now I do so ... uh ... yeah :p
This will give me a year to do my research and put together something, I am hoping next year to do all 3 days (if I can find some room mates... otherwise... eh i'll just play it solo then lol)