Park your RV on "The Hill" in Grafton near enfield off of route 4A. It is 30 minutes from West Lebanon where a full range of jobs and a medium sized shopping center is available. A large hospital, two colleges (four or so if you drive 45 minutes), and a few medium sized corporate/industrial job parks are within driving distance. Its a fairly central location, with a bit over an hour drive to Manchester or Keene. The location is two hours to Lancaster or the sea coast.
Estimated $1,300 for winter-ready water hookup installation, or as little as nothing if you already have the correct hose.
Estimated $1,300 for permanent septic hookup installation, or $300 for construction of an outhouse.
Estimated $300 for permanent or semi-permanent underground electric, or as little as $30 if you have the correct cable.
Millenicom cellular internet is available for $60/month for 10GB bandwidth, 100kb/s connection speed.