First, I noticed that you are looking for a significant amount of acreage and that you aren't looking for a traditional neighborhood. It seems as if you are interested in a more rural setting, but a modern home. In my opinion, most of the builders in this area, are building 4BR homes in semi-rural subdivisions -aren't making them "modern" because the demand is for tradition in that market. I'm sure there will be a few modern gems in existence - but more than likely they won't come situated on 3+ acres.
IF you want to build, that would be one option. However, I don't know what your tolerance for remodeling is - but that is another option. I hope by now you've had good fortune in your home search!
Thank you for your answers in regard to my query.