Welcome aboard, Kristen.
I' m from Northern MS. Walnut area, in fact. Some of the guys that hunt in our area use those foot booties, combined with down coveralls. They think that the booties do the most good. I usually layer when hunting, don' t have the booties, just a pair of insulated pacs, (the Mickey Mouse type). I have the most trouble with my hands. I agree with you about the wet cold. Lived in Northern ILL for 40+ years and I get as cold here as I did there. I go through a bunch of hot Hands each season.
Russ