Hi Daemon,
The first place I would start is post #1 here which has the information, steps, and guidelines you will need to make your best choices and more information about the better places to shop and which to avoid (including most of the ones you have been looking at).
Select Foam is one of the manufacturing members of the site which means I think highly of them. You can read more about them in post #2 here.
With the many issues you have … good local testing will be important regardless of where you make a purchase.
Some of the better options and possibilities I’m aware of in and around the Bradenton area are listed in post #5 here.
Phoenix