Dillion,
The possible sites right now are Southwest Louisiana, Central Illinois (Springfield), and Western Oregon. I realize those are widely different climates, but right now those places are in correspondence with us concerning us setting up a monastery. As far as terrain assume a slope terrain with the monastery built near the top so that the monastery is like a beacon for all around to see.
I am thinking there will be some modern HVAC, but I was wondering if there was a way to design so you didn't need much conventional HVAC systems? For example, rocket mass heater on a large scale like the hypocausts of Rome. Same thing with plumbing. Electricity will definitely be used for lighting.