Setting up the same website in a different location

Site URL: https://broadbelt.net/

I'm wondering if anyone can help. My website is up and running for clients in New Zealand. I am also based in the UK and would like to create a new website optimised for the UK but with the same content (apart from where we mention location of course).

Is the best way to do this:

1. Duplicate website
2. Update location
3. Change content to match what I want in the UK

What I'd like is for people in the UK who want to access www.broadbelt.net to be Geo redirected to the UK version of the site with the same URL. Maybe with /en on the end or something. And the same for users in NZ.

Can anyone help with a resource or steps in how to do this?

A general few steps to a possible solution without have duplicate websites.

1. Have a look at this software for redirection: https://geotargetly.com/squarespace-geo-redirect#:~:text=Geo redirection is the process,redirects for their Squarespace website.
2. Create UK/NZ pages by duplicating and swapping content.
3. The navigation then becomes a problem, but should be solvable with a menu plugin like this: https://www.will-myers.com/products/p/mega-menu-for-squarespace-71 or by alternating UK/NZ pages in the header and using nth-child(odd) and nth-child(even) to hide/display the correct ones on each page.

Step one and a duplicate website would allow you more freedom, especially in terms of SEO, but it would cost two subscriptions.