Property in coastal Florida relative to inland has it's downfalls as well. Of course there is price, but hurricane decay means the wind speeds aren't nearly as great inland as they are closer to coast. This is a good site explaining it..
http://www.hurricanescience.org/science/science/hurricanedecay/Considering the east coast of south Florida hasn't experienced a direct hit from a severe hurricane since Andrew in '92, and the next one could wipe out many east of I95, and the growing conditions are really only marginally better relative to inland, you couldn't pay me to buy land near the coast, I'll stick to the swampy inlands. Sure, I would have to spray fungicides to grow some mangos and it's not worth it, but almost every other fruit tree does just fine and I have 5 acres to play with.
As for flooding, elevation is less important than having a place to drain your property after a flood. For example, you can have an area with higher average elevation, but it will stay wet for two weeks because of proximity to a drainage canal, compared to another property that is lower in elevation but you have a 4 inch trash pump, site drainage plan, and an adjacent nearby drainage canal and you're dry in a two days.
You want to buy land in sfl? Focus on your finances, forget the "side hustle", chose a real career path (engineer, doctor, lawyer,etc) and prepare to make major sacrifices.
Option 2, if you can stomach leaving your tribe, I never could, is South or Central America.