b2b website development

We are looking for a web designer and developer to develop a relatively small b2b website 1) developing and designing a b2b website for which we will supply the photo material. 2) Products, movies, photo's and new categories need to be able to be posted easily (photo's at least 8 pictures per product). 3) There needs to be a number of different payment methods (ideal, paypal and bank transfer). 4) Products on sale (with old and new price) 5) Visible logo for stock levels of products. 6) company account registration possibilities, that can be disabled and enabled. 7) discount possibilities in cases when a business reaches certain buying targets 8) The website needs to incorporate youtube movies in products and main page. 9) Company information page. 10) Page for conditions for sale. 11) Website cannot display prices for normal visitors, prices and stock are only displayed for costumers accepted by us. 12) flash object incorporated on the site (on the main page, if possible by giving a input of a couple of pictures in the site and that these pictures are used in the flash object). 13) Easy and customised invoicing system 14) The main page design we would prefer to have similar to [login to view URL] 15) search option in site 16) site can be a Virtue mart, os Commerce, Prestashop, Magento or other os website 17) facebook like option in products, categories and main page 18) blog