I don't know about the school but I want to jump in before all the nah-sayers do.
DON'T LET ANYONE HERE OR ANY WHERE ELSE DISCHOURAGE YOU FROM YOUR PURSUITE OF YOUR DREAMS.
Its gonna come, ignor them and go for it.
I don't know what type problems you have with your legs, but I'll add the best gunsmith I knew, back in the late 60s and early 70s was a guy who had polio and was confined to a wheel chair, it didnt slow him down one bit. He even did a bit of guiding, had a greal 14 year old daughter that was his right hand. Did all the goofer work, great little lady, who planned on following in her fathers footsteps, I wish I'd have kept track of her, I know he passed on but often wondered if she keep his shop going.
Anyway good luck in following your dreams.
CPT USAR Ret
USAMU Sniper School Oct '78
Distinguished Rifle Badge 1071