Nice website, nice work. We are architects with coastal projects on three continents and an offshore engineering arm. A few things to think about:
"Hurricane proof" is pretty much a dream unless you are inland. Designing for 180 mph wind is not too tough. The problem is the debris in the wind. Everything is pretty simple until a 500 pound palm tree hits at 120 mph. If you are subject to storm surge, that's another whole ball game. Let's assume you're not coastal and you are after "hurricane resistant". Then, the Florida amendments to the International Residential Code will take care of you. Bare in mind that "resistant" allows several building elements to be sacrificed in the event, like windows, doors, stairs, decks, shingles, domes, etc. There are plenty of examples where a coastal building "survived" structurally but was totally uninhabitable.
Winter Springs looks to be about 40 miles inland which makes the task much simpler: less wind speed, less flying debris an a neighborhood. The building code accounts for these factors.
If the dome is pre manufactured and designed to be placed on the owner's structure, most any residential architect can do you a fine job. The pier is also simple though not always intuitive. Generally, the stiffest, most stable piers are also the least expensive and use the least concrete. This thread addresses that: Feel free to ask me any questions.
Your biggest difficulty may be finding an architect who wants to deal with a small, specialized project. Cold calls going through the phone book seldom get results you want. Try narrowing the list with recommendations from friends and neighbors. Then call the architect and say "so and so" sent me and they should at least listen to you.