Complex (?) hierarchical WP setup help

Hi Guys, I’m about to start a website based on WP for a fashion label. The main part of the site is about the designers (called brands), their designs and other info. I have uploaded a site plan of the site to make it easy for you to get what I am talking about. The section I am concentrating on here is Brands. As you can see each designer has their own biography, collection of designs that come out each season (image gallery) which needs to be archived, fashion show video, illustration gallery and links to the press releases related to that specific designer.

I am hoping this can be achieved in such a way as to make the permalink structure like so:

1. /brands/%designer-name%/ = biography
2. /brands/%designer-name%/collection = latest collection with archive links to previous collections
3. /brands/%designer-name%/collection/%collection-name%/ = specific collection
4. /brands/%designer-name%/fashion-show = fashion show video
5. brands/%designer-name%/illustrations = illustration gallery
6. /brands/%designer-name%/press OR /press/%designer-name%/ = press stories relating to designer

The two main considerations here are:

1. As simple as possible for a user to enter data
2. Permalink structure

Point one here is the most important as the permalink structure can be compramised for easier data entry.

Could you please advise me on how to set this up, I am currently thinking of custom post types for Brands/designer and for collections linking them together with a custom taxonomy but I’m not sure how or if this would work as I have never used custom taxonomies before.

If you made it this far thanks for reading through and any help will be appreciated.