personally I would suggest maybe talking to your local game warden, and ask them for some tips/suggestions and well, maybe steer you to some pre existing ranches that have what your thinking about adding to your's and get some first hand information on things to do, NOT do, and save yourself some growing plains maybe
a LOT of ranches in TX have these things anymore
I poersonally am NOT a big fan of adding NON wild animals to places, but , that's me!