Knew Carl Gibson (aka: Hoot, after the Astronaut).
He was involved in the original Gibson houseboats, still in business in Goodlettsville, TN. He then split from them and built CarlCrafts. Later, he had to fold that place up and restarted as something else (the name escapes me). His wife was a lawyer and owned all of their possessions and commercial real estate, leasing them back to whatever business Carl was running, so suing Carl was a fruitless exercise. He died a few years back, I believe, from prostate issues.
He was a colorful man and, while his business acumen and ethics were questionable, he was instrumental in forwarding the houseboat trend towards huge, usable interiors on sturdy planing fiberglass hulls.
You'll enjoy your boat.
(as far as the Keys, I'd be reluctant to take any manufacturer's houseboat into saltwater - The hardware and galvanic bonding systems usually aren't up to the task of facing sea salt, AND, you'll be reattaching wood trim and realigning all of the cabinet doors after the flexing exercise. I say keep the Nauti Girl on a nice lake or river system.)