The rig and underbody of our
Cheoy Lee Offshore 40, Mary T, are very similar to yours. We had several periods over the years, of sailing without an engine, whether it was out for a re-build or lurking in its hole waiting for the skipper's diagnosis.
We did not always sit on the hook or in a marina during these periods; sometimes we went sailing just for fun, others we went for
water and
food, which meant maneuvering in port. Based on this experience, if you are going to wait until November, it would be a good use of your time to get the mizzen boom back on and the mizzen working. It won't be particularly helpful to you on
passage, but will be invaluable maneuvering when you get there, especially if you have enough wind to take down the main.
Strapped in, the mizzen will keep the
boat headed into the wind while you drop that big
anchor. If you need to sail off the hook, you can tie the mizzen boom over to a
shroud to shove the boat onto the tack you will want when the anchor comes up (sail stop and slip knot). This is very handy in a crowded anchorage! We did practice this a lot in our early years, and at first I liked to have the engine (if it was working) ticking over in neutral as a
security blanket, but after a while I was happy to skip the engine. My late husband liked to get up early and sail out of an anchorage on a morning
offshore breeze singlehanded, adding the main or the engine later, depending on the wind.
I do agree with the people who suggest towing membership/insurance especially if you think you'll need to go through a narrow, coral-lined entrance to a crowded marina.