AlabamaDan,

Sounds a little like my place on the inside and porches, only I used stick built and vinyl to cut down on cost and maintenance. Good ideas on utilities and cistern. Don't dismiss deep cell batteries that you can take home and recharge after a few days either. They have fluorescent DC lights that use much less electricity, and fans that run off the heat of the woodstove (no batteries or power to run them). As for thieves, don't leave anything of value there and use hidden motion detector cameras in key spots.