http://texaswildhoghunting.com/
http://www.hoghunting.com/
http://www.keechicreekoutfitters.com/
http://tallpinesexotics.com/
http://4jranch.net/
The above are just south of me.
I have not hunted with any of them, I have enough hogs to hunt without having to pay.
March would be a good time of year, not cold and not hot.