I'd look into doing it in conjunction with some regional cattlemen's associations: they're already having conventions from time to time, and if you could squeeze a meeting room out of them for it, you've already got a captive audience. "Meeting time" is at a premium for ranchers: we simply...
Any possibility of just swapping the gate around and putting hinges on the other side? I know it WILL pull that post down over time, unless you have something to support the gate.