Welcome Kent, I have a 2005 28 CC with twin Volvo Kamd300A, cruise at 25 kn, burn about 1.1-1.3 gph depending on load. I have a tower and genny too. If you get the 28, try for diesel and a genny, also the extra fuel tanks are great ( 25 gal each) for a total fuel of about 260 gal or so.

Rick