Add new features to our joomla module

Hello, I developed a Joomla component to interface our joomla site with Rapid Action Profits (RAP) so that we could sell memberships via RAP to our Joomla site. The component works great except it is hard coded to point to our site. I am looking for a joomla developer that can put a nice face on the administrative side so we can make adjustments to the location the component looks for authentication. I also want it to be able to handle more than one site for authentication. The only change to the component I think will be looking at the variables for the site and looping through the sites until it finds a match. The rest is the admin interface. I need the joomla developer to create the user interface and make any modifications to the existing component as needed.