I live in Bridgeport, about 45 minutes north of Fort Worth and same, but west of Denton. I am an intake foster care provider for a horse rescue, the United States Equine Sanctuary & Rescue. I only live in 2 acres, though. My pasture is always full of manure. There was a lot here when I moved here and it's already turned to rich dirt naturally.
So, if anyone is interested in getting fresh and already composted pure horse manure, as much of it as you want, any time you want, please contact me via e-mail at asmith@usesr.org or call toll free:877-720-1685. If you can bring a utility trailer and a lot of heavy-duty black trash bags, you should be able to get enough for both you and your neighbor.
It's free! Please help the horses by comming and getting it. Even if you run a commercial business or want to re-sell it yourself, I don't care, I've got waaaay too much of it.