just custom order a board from any shaper with dimensions that you feel comfortable with. I'm 5'6" and just ordered a 5'3" Wynn (real good shaper out of jersey) 18 1/8 wide and 2 for the thickness. It's still gonna be shaped like a regular shortboard but a little wider and with a swallow tail. You could call any shaper and tell them to make you something that looks and rides like the lost rocket, but is a little fatter. (I prefer thinner boards.)