I do not know what type of house you have but most if not all of the exterior walls are LOAD BEARING, so installation of sliders may be more complicated. You can get your house plans from sumter county building department. You will need ARC approval for this project, as well as one or more building permits. Remember this is Florida and there are very specific building codes due to hurricanes so what you were able to do in your other home may not pass inspection here.
I am very handy did similar work in previous homes and would not attempt this here. We have a concrete block house and to install sliders would require a new lentil beam to be installed, way beyond my capability.
Good luck with your project.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
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