Budy,
I'm very interested in what you're talking about. But are you aware that from time to time HELCO will turn in a residence to the DEA if these see an abnormal amount of electricity flowing to your house. I've sat and listened to countless stories of growers getting busted courtesy of their electric companies.
Perhaps a set-up here on an empty lot in Puna. Move a semi truck container onto the lot. Rig it up with a portable Honda generator. People driving by would see a container on a lot. No big deal here, plenty of containers around Puna on subdivision lots/acres. A lot of people here build prefab homes shipped in, you guessed it,..containers!!! So it's not uncommon to see tents, containers, tour buses, on lots as temporary housing in Puna.