Facebook Competition Fan Gate development and advertising

I would like to run a Facebook sweepstake to increase our page likes ([login to view URL]) and increase engagement in the site. As part of this project I would like a freelancer to develop the fan-gateway page and backend to be functional as per this sweepstake - [login to view URL] I would also like the freelancer to run advertising to support this promotion in order to generate as many likes as possible - a minimum of 1000 Likes is required. Our target are fashion-conscious females 25 years old to 65 years old only within New Zealand. As a response to the brief I would like to hear how much you think I would need to spend to generate a minimum of 1000 Likes, as well as the cost for development of this project. If you are able to offer ongoing support to continue our Facebook engagement, continually increase our Likes, and convert our Facebook fans to purchasers on our e-commerce website, I would also like to hear your costs for doing this. David Elman is a family run business based in NZ, selling high-end women’s fashion footwear. Price range is generally between $200-$800. We are a retail only business (ie we do not manufacture ourselves anymore), currently with 4 stores, in Broadway Newmarket, Ponsonby Road in Ponsonby, Hamilton as well as a factory shop in Avondale. I look forward to hearing from you. Many thanks Rachel Monks