Hello, 

we need to develop/adapt magento to a multi vendor (multiple seller) system, either by using an existing multivendor extension or by developing it. Something similar to this:http://www.unirgy.com/products/udropship/">http://www.unirgy.com/products/udropship/

we need the following:

- Custom importing of 40.000 products and sellers

- Multivendor develpment. Sellers will have a page zone with products (such as alibaba)

- Product listing with sellers associated to products.

- 2 types of sellers: basic and premium. 

- Product page will show seller info (logo, premium logo, products, etc.)

- We will facilitate a PSD template of home page, list page and product page and it should be adapted to development.

- install some paid extensions, such us Facebock connect or featured products extension, etc.

I will send more detailed info, but I think this is enough to have a price. 

we need to have de development very soon, so I'd appreciate you send me a estimated development time.

thanks.