X-Cart integration (PHP)

I’m in NYC. I have a lightly-customized store running X-Cart 4.1 on a production server. I need someone familiar with X-Cart and the modules available for it to produce an application that will:
• Allow me to add a group of users (home salespeople )
• Append an url (http://www.mystore.com/salesperson1) and assign a skin for each salesperson
• Allow me to track the sales made via each salesperson’s url
The application should produce an exportable list of sales per salesperson. Every page of the store should display the skin as personalized for each salesperson.
I believe that this can be done quite simply by integrating an affiliate module and the skin-swap module, both of which I am happy to buy. I need someone who can handle any integration necessary, and suggest which specific affiliate module to use.
Please contact me with an estimate and/or to set up a phone conversation.