Create an ePUB from PDF/TIFF etc scan of old catalog

I am looking for a freelancer who can create an ePUB from a PDF scan of an old catalog. The scan is in PDF format. This is approx 400 pages with a bit of text on each page. Mostly it is old monochrome drawings or diagrams.

I have all the pages scanned and can provide them in whatever resolution, format required with some automated tools.

I have removed all the page numbers and blanked out information that should be moved to headers etc.

This needs the structure of the ePUB created and fit it all together.

I include a PRE CLEANED page as a sample of what it looks like.

The final pruct me be usable for me to edit by hand and recombine. No overpriced software products I don;t want to own to open and edit.

Layout:
- The ePUB layout should be kept as close to the original as possible.

Interactive Elements:
- The client is not sure about including any interactive elements in the ePUB and would need advice on this matter.

Ideal Skills and Experience:
- Experience in converting PDF scans (old sales materials) into ePUB format
- Knowledge of ePUB layout and design
- Ability to provide advice on including interactive elements in the ePUB