... Sounds like you need an Architect and an Interior Designer?! Maybe an Architect who can do BOTH???!
You can hire an Architect to just consult. Simply put, you 2 talk and they make drawings, and you go back-and-forth until you get what you want. Granted, ******* isn't an architect but he does use them as well as Interior Designers. This Old House (TOH) uses this type of 'team' all the time. They usually have a Landscaper and a General Contractor. Architects are like artists; they have to have some imagination. Their background lends themselves well to your situation.
You're gonna pay some good $$$ for professional advice from an Architect. Work with them on their services and you'll do just fine! That's the route (+ the Interior Designer 'person') I suggest. My best to ya and hope this helps.
PS: If you're looking for the ******* type, and find one, let me know!