For floor plans go visit some model homes, and take pics and pick up some paperwork. Home shows, especially Log Cabin shows. Lots of stuff on line, but there is no substitute for standing in the rooms. Plan your site so your driveway will be south or east to get sun, likewise for porch. Think about outbuildings like woodshed, ect, so you won't be driving over the future septic system. Just a few things I learned the hard way.