I need a designer for a new construction home

Our custom home plans were completed by an architect we are looking to break ground any day. We purchased 12 acres from a farmer in the Village of Waukesha (25 miles west of Milwaukee, WI). My husband is the General Contractor so we are not working with a builder. It is a modern/contemporary exterior and I would like to bring the same style inside. Again because we are not working with a builder there is no showroom or consultant to help pull the look together and I am seeking someone to help design the interior of our home. I have an idea book on Houzz, I know what I like when I see it, but designing an entire house should be exciting but instead on my own it is daunting and a bit overwhelming. Help!