Create and Manage an EBAY campaign on EBAY

We are a prepaid wireless service operating in the USA. We are looking for a someone with extensive experience marketing on Ebay to design and create a campaign for that (Ebay) target market. We are interested in this person to create and manage the campaign on an ongoing basis. Requirements would include to create Ebay pages to attract the right customer, answer questions from customers (company will assist), continually create new and innovative offers and advise company what promotions public is seeking and what to make. This can be a long term campaign. Compensation is negotiable in that we could offer a $$ amount per sale rather than a flat rate payment so the upside could be very lucrative for the right candidate.