Add-Ons to a Group Buying Website

I have a group buying website. Please only bid on this project if you know the product INSIDE OUTand have done a similar work before. I am looking for an experienced and reliable developer to start immediately working on: 1- Customizing the site. I would need similar functionalities to "gonabit.com" & "groupon.com". please review the websites thoroughly as I would need exactly the same functionalities and add anything currently missing from my site. 2- Redesigning the site and change existing colors to match my logo design and color palette. 3- Customizing text based on my requirements (I have prepared what needs to be added) 4- Adding a payment gateway for credit cards, paypal and cash on delivery 5- Fully test the site before delivery 6- Go through a Demo together and make me familiar with the Admin panel. I need exactly what is mentioned. I will need to see examples beforehand. I will need someone with excellent communication skills and reliable service. This work turn into a long term business relationship. I am on a VERY tight deadline and hence will need people who commit to the time and deliver the work ASAP. Be able to go the extra mile to deliver project fast and within expected quality. Payment will be made through escrow and only after the website is complete will you be paid. Regards