Adding more sailpower to help slow, heavy cruiser?

[Kd9truck]

I have read folding prop and agree that it will improve hull speed, but at a cost, you will be giving up power from the motor and in my humble limited experiences that not a good trade off. I would rather have a big beautiful prop with plenty of power.
My boat points well. I am looking to reduce windage up the mast so a staysail for heavy weather and running is the direction I am looking to go.
Does you fore stay roller furling foils have 2 tracks? If so get a 135% Genoa made out of spinnaker sailcloth and instead of a code zero, or gennaker etc. try the light weight Genoa on the other track on the roller furlers second foil, use the boom to hold the Genoa and a spinnaker pole on the light weight side. This will definitely improve down wind performance.
Up wind I would say a staysail used the right ways can definitely improve performance up wind but then you will need to furl and unfurl when tacking.

[Cheechako]

You'll get more out of going to a non furling main than you will converting to a cutter. Get a good main with a big roach.
I also wonder if for daysailing charter if you need much sail. It seems most want to just move along and watch the shore and sights. Heeling over is not often what they really want. Removing clutter will help with strangers aboard and a staysail stay is clutter.

Not sure about Florida but up here you need strong, high and tightly spaced railing on the boat for charter. 42 inches high and a toeboard of at least 4" from the deck.