You can get a rail kit for your motor, or have one made custom since your pump and motor location is different for most boats. To have one made for you and installed, your looking at spending 1000 bucks, give or take. There mainly used in race boats and for high HP motors.
Here is a picture of a custom made one by Jack at MPD
http://free.***boat.net/gallery/Gear...s/DSCN3265.JPG
Good Luck!
HBjet