I am about to make a move the opposite direction.
It is hard to know what to expect in terms of money and what that will buy. Hopefully at least enough to starve on.
I am probably shoving off without an employment contract but I have a lot of contacts and know I will get a job.
Pay and life to expect are what get me the most. It is hard to say. I know EMPLOYED climbers that get from $14-$25/hr. That is a wide range. A lot of room between eating rice and beans or actually eating and living in something slightly larger than a coffin.
I guess what I came to is if you want to go, go. I know where my skill and education level is and what I can ask for without being unfair.
Worst comes to worst, I am bringing all my own gear and a few chainsaws. Been self employed for the last 3 yrs so that option doesn't scare me.
Sorry I can't be more help. Good luck either way.
PS - I can't recommend Texas for tree work. Wages seem low for the employed IMHO.