The first step would be the LAND,. which the best way is contacting someone like Myself.
The builders come second,. there are some out there that will help you figure out what works best in your situation., If the one acre is important then stay away from the new home construction sites.,
They are basically out to build one on top of each other,,.
Let me know if I could be some assistance., there are plenty of builder to introduce you to.