Welcome to IRV2
I can't answer your question directly but one of our sponsors RVUpgrades.com handles Safe T Plus so I went to their web site and found these dealers.
http://www.safe-t-plus.com/dealerLocatorByZip.aspx
You could start by calling these installers and see if they have what you need.
Sorry I can't be more help but maybe by stirring the pot, a Floridian will see the thread and be more helpful. Hang in
there, sometimes it takes a few days for everyone to see your post.