Daily Deals Script Modifications and install

We're looking for somebody who has experience modifying a Yipit (or Onespout, Dealgator) clone script. You can choose the script that you modify, and we'll purchase it, or if you have one already, that would be perfect. The script will be similiar to the existing ones on Agriya or another white-label groupon clone company. The script must contain smarty templates so that we can modify those pages in the future, and the major modification has to do with how user data is posted. We'll give you more details once you are interested. We also require the script to have a database and be installed on our server so this project could easily exceed the time/award alotted in this ad. When you reply please outline your experience and your strategy for this. Thanks, Chris