add recurring billing to boxbilling system and some mods

I have the BoxBilling ([login to view URL]) script to manage my clients on my website. This system already supports 2checkout as a payment gateway but it only allows one time payments. This system does accept recurring billing at the moment but only through paypal. I would like to accept recurring payment for 2checkout. This should be something pretty simple since the system already supports 2checkout as a payment gateway. I also need some other mods to another script. I will specify what I need to all bidders. Cheapest and fastest turnaround bidder will be accepted. Happy bidding!