I have a 22' sailboat that I am restoring which does not have power, and I get a bit worried at the thought of sailing without power. I think its all in your confidence level. If it were me at this stage in my life I would not do it (and I would replace the atomic 4 with a diesel engine). I would love to get to the point where I can tag my mooring ball without power but I am not there yet. Overall the technique to sailing a boat without power can be different at times and you should gauge your abilities to do things like moor/dock under sail. Best of luck.
22' Sailmaster Sailboat Restoration