Silly man thinking you need a septic tank and running water. You can run into town once a month and get a bunch of water super cheap at low cost grocery stores. (A.K.A Winco or Costco) As for sewage just do what everybody did 100 years ago in the middle of nowhere. Dig a hole, build an easily moved wooden outhouse over it and just fill in the hole every few months, dig a new hole, and move the outhouse. It's not as if you won't have the time while you are a hermit. Also, good for the muscles.
I like the still idea though. So long as you have some sort of wild fruit growing near you can make your own hooch good for getting messed up on and good for cleaning any wounds you might incur while living in the middle of nowhere.
Ummm...It's not as if anybody is going to expect you to make your payments on your loan. Seriously, just shoot at anybody who gets close with your twelve-gage. Move to Alaska and the authorities will only bug you 3 months out of the year because the rest of the year it'll be impossible to reach your hermit hovel.
I could do this.