Set up a Shopify Store with around 450 Products

Job ID: 37915043

Budget: $30 – $250 AUD

I am looking after a cooy of an existing store obviously with permission of the owner. I need an exact cooy as this B2C store will run from a separate Domain as the existing one.
The design should be as close as possible to the existing one but variations are possible. Important is an as user friendly/customizable as possible. Maybe the Avone theme.
The store cant just be placed on a new domain as such as currently its being fed through CIN7.

Please explain how you would approach this? Do you know CIN7?