KDP Interior Formatting (6 x 9 inch academic planner, 126 pages)

I need an experienced KDP interior formatter who is familiar with KDP margin, bleed and gutter requirements to make my academic planner fully compliant with Amazon KDP's print specifications to:

Adjust and confirm trim size (6x9 inches)
Apply mirror margins (inside gutter and outside margin)
Ensure all text, boxes and artwork stay inside KDP's safe area
Add/confirm bleed settings (no bleed and white borders)
Export and deliver a print-ready PDF that meets KDP's technical requirements for fonts, margins and file size as well as source file.

I would also need to double check that all fonts are embedded and images are 300 DPI.

It is a 126 page week to view planner with a premium white colour interior.