try not to sleep on your right side for a few days, or have it done on your left arm. mine is on my right leg, I sleep on my left side or my back.
also, being in a wheelchair is not a problem at all. I’ve watched Miami Ink and saw an episode of a man in a wheelchair fully tattooed…that day he had one done on his leg.
so, go for it! make sure it’s a design you feel identified with. enjoy.