Contemporary, professional magazine/book design

Hi,
This job is for a high end finish non-fiction book. Whilst it's predominantly a text and workbook, the look and feel should be closer to a coffee table style book.

I'd like to agree on a high level look and feel first, in order to speed the process up and avoid misalignment of design options.
Only once a high level design is agreed we can proceed to the main job.
Please share your suitable expertise via some of your previous work.

We will use InDesign, and the chapter to be used for the design is about 20 pages.
I will share the current doc once I had a chance to look at your prev projects.
Price is a guide and am happy to pay for top end quality.
Many thanks!
oliver