Marathon Marina and Boatyard is an upscale Marina, with a lift I have seen takeout 80' yacht, but it's slips would have been reserved long ago. Marathon Boatyard is a working yard with all trades on site. I believe there is a Marin storage yard above Key Colony that has some ability to take out . A friend had a 45' Chris Craft on the hard there.
You can live a lot cheaper up the west coast of florida. Haul out, more material availability and more for kids to do. the only reason I come here is Family and friends to visit. At least wise for the past 6 years or so, since the costs have sky rocketed. The east coast has moved right on down.