Choose plastic instead of paper at the store, use the built in handle to pull the bottom of the bag through around the rails, wind makes them flutter = no birds
Dangling cd's on monofiliment, movement and the birds are gone.
Now figure out how to make it look good to your neighbors.
Most coastal areas of Florida with developments would have laws against what you want to do. Texas might be different, but I would not mention the live aboard part of your quest, once you find but before purchase inquire about dock construction and installing temp power or septic with or...
Do you dive to that depth? If you don't a lot of places to lose anchor in the Bahamas, on wedging into rock much easier to retrieve with a line attached at the front of the shank.
Nice to have all chain for the extra weight and chaffing by sharp objects above and below.