I recently purchased a "Extend-A-Truck" hitch brackt that can be mount vertically or horizontally.
Vertical - Clears the soft top (no body lift) and will easily support a canoe, kayak, or in your case a Wind Surfing board.
Horizontal - will extend 5 feet out the back of the bed. Unfortunately I'd have to take the back gate off if I were to use it this way.
I think that using the Extend-A-Truck along with a windsheild mounted light bar should support your gear in the rear. For the front support... (I still haven't found a light bar I like)

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