This sounds awesome!
All be it I have zero experience designing or building air boats, I do have 15 years experience using CAD and have worked on for and with multiple CnC machines including designing childrens furniture, doing marquee 3-D sculptures and tons of signage.
The CnC factory will have to do some tweaking or at least I will have to work with them for specifics on the cut paths that the CnC will have to follow based on my drawings (for example inside / outside face of lines, adjustments for material thicknesses etc.).
But overall this sounds like a really fun project and I hope to be in touch with you in the future to get started!
Thanks in advance and look forward to talking to you.