Just to close out the request.
Long story short, I ended up staying at Frenchtown Marina (CYOA charter
Base too). It's small (not a bad thing) although if all the charter boats were out for the week, there would be more room.
The Staff was friendly & so were the other guests. Near town, not that far from Supermarket, restaurants/bars inside Frenchtown area with marina, quiet at night(Thurs), more reasonable rate than Crown Bay & other more formal marinas
mentioned. Frenchtown was organized, clean and was exactly what I needed. I would return without any question.
I did get fuel
(not available at Frenchtown) at Crown Bay and did take a close look (on foot days before making decision) at their layout which seemed more geared to bigger Yachts.
Thanks again for suggestions & info. I have a much better feel for the area now.