Shopify theme installation

I need help with the installation of a Shopify theme. I have approximately 40 products that I want to upload to that theme, i need them placed in the menu and category according to the list i send you. Variants also need to be set up, in this case for size for the rings. I will provide the necessary details to the person taking on this task, and I am happy to have a Skype call to explain and minimize any misunderstandings.

I want the installation to closely resemble the theme so that everything looks the same, but with our products instead. I will send a link to the demo installation of the theme for reference.

This needs to be completed within 20 hours from now.