Custom VBulletin mod to integrate with existing system

A previously-posted job's scope was changed during discussion/negotiation. This job now involves creating custom VBulletin input screen to integrate with existing Moodle/Amember/VBulletin based system. We need our basic system to be replicated, then on the new version we need to add a VBulletin thread input form to integrate with Moodle's lesson release system (which has previously been customized on our system). Once completed, we need to ensure accurate Amember functionality (which involves minor Amember/Moodle customization), and then updating the payment/signup page to ensure everything's secure and functioning correctly.