So I'm a little slow. I wish I could help, but I've spent the last several weeks trying to find a longer hike in Texas, and failed. You'll have to carry as much water in the Guadelupes as in Big Bend, unless you break it up into a bunch of 2-3 day hikes. You might check with the rangers in the Gila wilderness, it's been pretty dry, may not be much snow. If I come up with something I'll let you know.
I keep thinking we need to come up with the Texas answer to the AT.