Shawn, have you been thinking about a hydrofoilboard instead ?
You say it should be for lightwind, and pack down small for travel.
A hydrofoil needs a much smaller board (a TT could be used) than the one you are about to make, and it rides in less wind, and packs down really small.
You can also dismiss at least one kite, the biggest one(s), so even easier to travel and pack without kites over 12m2.
So another solution that could get you to your target, and much smaller when travelling