If you can't go UP with a large enough berm, etc. how about down? What's your water table situation? Can you do a dug out patio/courtyard area for sitting and teaching in?
"The world is changed by your example, not your opinion." ~ Paulo Coelho
We've gotta get close enough to that helmet to pull the choke on it's engine and flood his mind! Or, we could just read this tiny ad:
grow your own garden and build your own home, in Montana, for free-ish