Modern Non-Fiction Book Layout

I have a completed manuscript for a non-fiction book that is largely text-driven with only a handful of charts and images. I want the interior pages transformed into a clean, modern, and sleek layout that enhances readability while still feeling professional and authoritative.

Here’s what the project involves:
• Flow the 100,000-word manuscript into a fresh, contemporary template—preferably in Adobe InDesign—paying close attention to headings, sub-headings, pull quotes, and footnotes so they guide the reader naturally through the argument.
• Design consistent typography, margins, running headers, and page numbers that suit print trim size (6×9 is my tentative choice, but I’m open to suggestions if you see a better fit).
• Place the few visuals I provide so they sit logically within the text and carry matching caption styles.
• Prepare final, press-ready PDFs for both paperback and hardcover, along with an EPUB file that preserves the same modern feel on digital devices.
• Supply the packaged InDesign files so I can generate future reprints or editions without starting from scratch.

Acceptance criteria: files must meet KDP and IngramSpark preflight checks with zero errors, and the EPUB should validate in EPUBCheck.

If you have examples of recent non-fiction projects where you gave a fresh, minimalist edge to long-form text, that will help me see your approach right away.