How to structure a second location site.

Hello, I need some guidance to find a solution to my situation.

I need to create a second Website for my employer's Business, second location.
The second location has the same types of products and services to display, but the offerings due to inventory should be independent.

I looked into a Multisite but as far as I understood the sites do not share the custom post types, taxonomies etc. that I created.
This is a must as the post types and taxonomies change from time to time.

A different domain or how the site is structured is not required or set in stone.

Is a multisite really the best option here?