Sailing alone with a wheel will be cramped.
I sail single handed about 90% of the time on my C22. If she had a wheel it would make the rear half of that cockpit very, very crowded and busy. Add the rear cockpit safety metal work and lifelines and it's even worse. Then you need to get to the outboard motor.A tiller you can step over, a wheel you'll simply cuss about.A item I've found quite useful is a tiller extender. Better yet, and cheaper than a wheel would be a auto pilot or in this case a tiller pilot. Whatever you do, just enjoy your C22.Ray