If it isn't too late, your best bet is to choose a quieter brand. The (Air Marine
/ Air-X & Air breeze) units are the loudest in the indistry, and it is an annoying high pitched "weed Wacker" sort of sound that can be heard easily for 1/4 of a mile! (Air-X) The "Air Breeze" doesn't travel as far as it's brothers, but it would be antisocial in a crowded anchorage to run them, except in the middle of the night when folks aren't lounging in their cockpits. If you got the small, less powerful, Ampair, LMV, etc units, they would be silent, and you could run them 24/7... so get more amps in the long run. OR if max output is important, The KISS brand will outshine the Air Breeze, but not having those skinny tapering blades, the Kiss makes a soft "whirring" fan sound, that is not very loud or annoying.
Any of these can be mounted in the mizzen, and that is an excellent place for them, but when we replaced our wind generator
10 years ago, for an extra 110 W solar
pannel, we found the following... Since we seek protected anchorages
gave us "0" amps most of the time, followed by 500% of our needs on occasion. Solar
gave us most of our needed amps, 95% of the time, and are more reliable, with a longer lifespan. AND they are quiet. (Between our 4 panels
, adding up to 280 W total, we have our batteries charged completely by about mid day, 95% of the time!)
IF you add a wind
unit close by the solar panel, like on the same arch, the shading of the solar panel, created by the wind unit, does more harm (amps wise) than the gain from the wind. GO ALL SOLAR IF YOU CAN! Othrwise, go as quiet as you can... It's more fun to have friends along the way.