Second Life sailing sims

WARNING this build needs major cleaning to be printable. I have tried just about everything to get the seems to join nicely. I have attached the the raw height maps I produced using in-world tools along with my openSCAD.

Update 2016/05/08
Wow the blender tool bridge edge loops is a life savor I have fixed up the seems issue on the lower portion of the map but it will need further editing to be printable I am actively working on the top part of the map as it has the nastiest of seems i have