Welcome Chris! We lived in Dallas (Preston Hollow) 1991-99 and again 2003-2007. Boated via rentals and friends on Grapevine, Lewisville, Lavon and Texoma, and down on The Gulf out of Port Aransas mostly. In 2007 we bought the Hatteras and went cruising, much like you contemplate. I was just back there on Friday for the day, Las Colinas.
Whereabouts in DFW are you and where do you keep the Donzi?
"There's the Right Way, the Wrong Way, and what some guy says he's gotten away with"