Does it have to be in the middle of nowhere like VP? There is one place I can think of, a community-run eco-lodge, but I can't remember the name now. Otherwise everything else is in or just outside the town. What about villa rentals?
This is the one I was thinking of - http://ecoangostura.com/
Never been there myself but would like to go - it's a community eco-tourism initiative built and run by local people, with support of USAID, Peace Corps.
Then Villa Pajon was probably not the best choice either, with no electricity.Not sure. Looks too much of typical campo which we have when we visit family of my better half. We look for something with a little more touch of "honeymoon"... .