Two of them are on yachtworld. Yachtworld specs say:
Builder/Designer
Builder: Gulfstar Designer: Richard Lazzara
Dimensions
LOA: 45' LWL: 35' 6" Beam: 13' 2" Displacement: 26000 Lbs Draft: 5' 4" Ballast: 9500 Lbs
Engines
Engine(s): Perkins Engine(s) HP: 50 HP Engine Model: 4-108 Cruising Speed: 6.5 Kts Max Speed: 7.5 Kts
Tankage
Fuel: 54 Gal Water: 140 Gal Holding: 2 tanks