Customize Magento installation and upload product data

The project is to set up a Magento instance with MULTIPLE STORES and install themes, plugins, etc. You will also be responsible for uploading product data (list of products from CSV and XLS files) and product images, and setting up categories, etc. You should have experience with this type of project and manually adjusting/importing data in MySQL if necessary. Additionally there may be some programming required to add features to the basic Magento code. You should have experience developing Magento plugins. It is NOT OK to just modify the Magento code directly, because then it cannot be updated. It is very important that you have EXTENSIVE Magento experience. This is not a simple project. There are many details beyond simply setting up an online store. To confirm you have read this entire description please type "Magento expert" at the top of your bid. Please also send 2-3 examples of previous Magento sites you have set up. I will ignore bids that don't have the keywords at the top and do not list any examples.