Community Builder integration

I have loaded Community Builder into my Joomla website however I need help linking the products I want to use for the paid subscriptions. I also want to extend the usability, in as much as I am selling subscriptions with a set number of hours per month and what I want to be able to do is once a subscription has been purchase update the number of hours that have been used for that particular user. I.e. a Silver package has 4 hours included per month, what i need is an option in the back end where I can update the number of hours remaining so that it appears in the users account. I am also looking at extending the usability of Community Builder to integrate a project management system as well which I will look at also awarding to the winning bidder if I am happy with the work. I am on a very tight budget and a very tight time frame (i.e. I need this done in approx 5 - 7 days. Send me a message if you have any questions Thanks Jason