How to rig for Reds and Mangrove snappers?

It sounds like you have the basics covered. I would suggest a leader, about 1.5' of 40lb florocarbon should do it. The reason for that is SNOOK. Snook have very abrasive mouths that will wear through mono and braid easily, also you will be around mangrove roots and other structure. I'm not sure exactly where in the glades you will be but you will most likely be fishing the Chockoluski(sp) river or some type of creek, so depending on water temp down there the fish should be cruising all over not tucked up under the mangroves in the shade. Throw the plugs you have, and any small soft plastics.