Assistance with shopping feeds required (osCommerce)(repost)

We need somebody that understands shopping feeds extremely well. You need know Google Merchant Centre and Google Product Search, and will have practical experience of setting up product variants (note that the products involved are not apparel based!) You also need to understand Bing shopping feeds. Initially we just need a sample spreadsheet as a guide so that we can generate Google and Bing shopping feeds from osCommerce, and we also need some advice on implementing this with a particular set of client products. There are several contributions available to do this, but none of them really hit the spot! If you could post details of any shopping feed projects that you might have completed, that will help us to pick out the best people for the job. Many thanks :)