WordPress Template Navigation customisation

We have developed a blog on the following link: https://spandex.blog/ (Password: 3p@ndexxxx)

We need the site navigation customised so it is appears to sit within our main website shop (https://shop.spandex.com) as pictured below.

https://invis.io/PFRKN0WNTHD

Rollovers and styling should be consistent with the main website as far as possible. (NB - replicating the drop down navigation is not required)

The navigation will need to resize responsively in a manner consistent with the main website shop.

The site will be set up in multiple languages for different regaions using Polylang. All of the below functionality will need to be able to be altered at local region level. We will add Polylang capabilities when the project begins.

Specific functionality:

Language flags - will show a drop-down list of all available websites exactly as seen on https://shop.spandex.com/ We will need to be able to edit and add to the list and define the links for every region.

Find and office - we will need to be able to edit this text and define the link for every region

Log in / Register - we will need to edit this text and define the link for every region

Spandex Logo - we will need to be able to Change this image and define the link for each region.

Shopping Basket - we will need to edit this text and define the link for every region

Navigation Items - HOME through to MATERIAL BRANDS - We will need to be able to edit the name and define the link for each navigation item for every region

Navigation item - INSIGHT - Will navigate users to the blog home.