Just to give everyone an idea of what I am trying to do, I will share a picture of what I have so far.
I created a house, shop, and storage building in sketchup and then placed it on a flat satellite image of our land. I simply have not had time to go to the land and measure the elevation quite yet.
I may take a small airplane up and snap a few photos myself... I need an excuse to go flying anyways (I am a student pilot)!