A distraction for you, if I may?
You'd be surprised how little power you need to move a boat off the mooring / in flat water etc. If Easter cruising is important, there are several options with an outboard.
Bolt a tenob bracket (spelling?) one of those lifty things on the back, and just blat around all easter. A certain nameless Commodore did this for most of the summer waiting for their new Beta to arrive on a F1020.
Or, if you are game, and the weather benign, you can strap the dinghy amidships with springs, and motor the yacht around like that. Complicated fitting into marina