FWIW, I have a Ridgeline with a 5'4" bed. My 10'6" surfboards are fine with the tailgate down (total flat length just shy of 7') and a red flag on the end.

Edit - I would have considered a Santa Cruz or Maverick, had they been available when I bought the RL. But, they're beds are smaller yet and one of the big selling points of the RL was the under-bed trunk, which is massive (about the same as the trunk on my wife's BMW).