Looking for fully stocked Eccomerce store

Hi,

I am looking for a fully stocked e-commerce store with all the products and prices already uploaded on the store front. Need it so that I can do a little edit.

Wondering if anyone can help point out a service or anywhere I can rent the solution? I don't mind paying a one off fee or monthly fee. Can be any solution ie opencart, magento, shopify etc.

Will give rep+ thanks.

Thanks,
B