I would like to help you with this project, but how exactly do you want to rebrand? Will you regenerate the whole catalogue from scratch? Your one line description of the project has whet my interest.
I am an expert in database publishing, and can produce books to your own specification (or indeed produce a design under your guidance). I have been a project manger of publications for a number of years, to print, to pdf, to html or any combination of these possibilities, repurposing the material. I have used a number of layout programs to accomplish my projects.
There are a number of questions about the catalogue -- how many pages, items, sections? What sort of changes? What is the content of the catalogue? There are other questions which rest on these and so on.
I look forward to further information about your project, so that I can confirm my bid.
Regards,
Stilman Davis