I was wondering if those gas tanks might be the answer. I’m guessing the hardest problem would be keeping the ground water from floating it right out of the ground. I guess you could back fill around the container and hide it with heavy landscaping.
In a hurricane we can get 10-20” of rain in a day so drainage is crucial.
I’d almost think that the tanks would have to be anchored into bedrock/shale ledges with long stainless 1” cable-wraps to keep them from floating, in that much water, dd. What do you landscape with in that high a water table? Bald cypress (Taxodium distichium)? That’s one of the few plants who can withstand so much water at root level.