I have used (and am using for my new house) the same woman. She may or may not be the right one for you, but you may write me a personal note and I'll describe her preferences and working and pricing style. Or I'll give you my number. I love her work but there are some drawbacks to using someone who charges a lot less than the high rates that others charge. The tradeoff was great for me. Instead of charging by the hour or giving you a lump sum price in the beginning (which they will change as you change your mind or add to the scope,) she charges what she thinks is fair for her involvement. It comes out to about $35/hour.
Example, one bid I had for a living/dining and fireplace mantel only remodel was $20,000, materials included. I was horrified.
This decorator ended up charging me about $3,200 for consulting with me on the whole downstairs. (That included color and texture selections, wallpaper for the powder bath, adding & designing new cabinets, adding furniture, lamps, moving furniture, new floor to ceiling draperies for the 2 story living area, all selections, placement, hanging pictures, etc.) She passed along the cost of the work or items to me in addition (painter, cabinet maker, drapery maker & material, etc) at their cost. She has excellent people to call upon that charge less than most and are more flexible in that they don't charge minimums like many others do. I probably spend only about $3,000 more for those things.
You can choose to do far, far less and even do it steps at a time. Part one year and part another year. Or one room at a time spaced out as you like. You can divy up rooms where these rooms are more contemporary and these rooms are more southwest and tie them together with something consistent (like color pallette).
It was treat for me to get a mentor and get experience so that I felt I could do the smaller stuff well on my own and she became a personal friend as she was a joy to be around. My mom hung a few pictures and clocks and they stayed like that our entire lives on white walls. The furniture never changed. No mentoring there.