eCommerce book sales

I work with a UK bookstore having a long inventory list. Currently processing over 1000 orders a day. The bookstore wants expand the market and sell English language books through major eCommerce websites in Germany.  An excellent back end system with complete integration for delivery and logistics shall support the process.  Handled majorly outside Germany. Knowledge about functioning of E commerce(preferably books) and German language is needed.   If you are setup as a local business in Germany then this shall work on a sale percentage basis.   Should you be interested, please mention something about you and we can discuss further.