Good for you (seriously).
Rule #1 is be persistant
Rule #2 is marry the bosses daughter; but we'll probably have to skip that one.
Rule #3 is collect "No"s. The more you are accumulating the better chance you have of hitting a "Yes". Send letters out to every builder, dealer and yard you can identify within your target area.
Google up some variations like "Boatshows" and check out the listed exhibitors and sponsors for leads. Check prior year's shows, also.
NC Boatshows.com--Bass & Saltwater Fishing Expo in Raleigh - Particpating Dealers
Charlie P. Mud Hen 17 #69 Mad Hatter
To travel hopefully is a better thing than to arrive - R.L. Stevenson
I suspect that, if you should go to the end of the world, you would find somebody there going farther . . . - H.D. Thoreau