I used to work with a guy that did the same thing years ago. If the boat does not have to be seen to get it registered, tell them it is a homemade boat. Then, go home and make something to mount on the front of it. Use your imagination. I mounted antler rod holders on one for a guy I used to work with, and believe me, it made that boat. Anyway, every law has a loophole. You get your numbers, you made something on the boat. Its all nice and legal.