Yeah it's my own design.

A bit of caution with ppl calling themselves naval architects, they may not be engineers. There are a number of courses around the world that give naval architecture qualifications which aren't necessarily engineering degrees. There is a difference.

They may be perfectly skilled to provide you with what you need, just validate what you are being told by anyone in the marine industry(even the stuff I'm saying here). Learn to ask the right questions and/or see for yourself a prototype or previously built boat of the design you're interested in. Look into what other stuff they've done and the final results of those other projects.

Other than that, good luck with your project, if you get stuck, you can always ask questions here.