Building a multi-deploy web store

I am in need of an easy-to-deploy online store, with preloaded data and custom product formats. The following are the requirements: - Stable, open-source platform - Easily theme-able and manageable by the end user - Custom fields for products. Three extra price fields, and a numeric field. These fields must NOT be displayed on the frontend, only for the administrator! - Products must be added to the platforms database with the custom fields filled out. Product list with all required information will be given to the chosen freelancer. - The finalized platform must be easily deployable - meaning the end user goes through the regular setup wizard, and the database is populated with the previously inserted products, custom fields contents, etc. What I do NOT need: - Custom theme (end user will choose/buy/install their own) - Customized functionality apart from the custom fields Please only bid if you can finish ALL parts of the project in two weeks (10 work days)! Apply only if you're a freelancer in Europe (no companies, large groups!)