OS commerce install with a few add-ons. It is a windows server, with no control panel, but I will get you FTP access to the server, along with phpMyAdmin access. We require the installation of the Excel import contribution, for them to be able to import products using Excel, along with [url removed, login to view] payment module, and UPS XML shipping module. Store should also be set to auto size all product/category images while maintaining the original image aspect ratio. It should not stretch the image, or distort it.
Also, you will supply and install non standard template.