Pastor Mark,
We hunt some pretty snakey stuff around here in NE Oklahoma and I have hunted some of the Big Thicket areas of E. Texas. A hunting buddy turned me on to the idea of wearing the super tough hip waders, both to stay a little drier and fend off the snakes. I have looked at Cabela's and they don't seem to have them anymore. I think they were called "Brushbusters". I'm sure another manufacturer has something similar.
The ones that I own have been put to the test with everything BUT a snake strike. Barbed wire, blackberry bush, green briar. I even climed an Osage Orange tree in them once and was punctured every where else but through the hip boots.
Since you may never need snake boots again, these might fit the bill and be useful back home. Unless they would be just too cumbersome.
From the looks of the pictures of those snakes I'd be worried about them biteing me on the chin, not to mention the legs!
Good luck with your hunt.
OkKeith