You might want to look up Pat's Atomic Fly shop in Moses Hole, they might offer cheap lessons.
He closed down a while ago, he now works in the flight program at Big Bend. I see him every day, I should just ask for lessons haha
I did not know the shop was no more. A very close family friend started the flight program @ BBCC Col. Don Wright. He died a few years ago, great man. He patterned the flight school schedule off of the flight schedule he learned during the Berlin airlift