Integrate cleeng.com Video on demand service into adult entertainment website

I need someone who can integrate [login to view URL] which is a video on demand service and payment processor for such into a adult website next to the currently used system. The currently existing payment processor and site function shall not be completely replaced (since there are users which are still using this service) but new subscriptions shall be only possible per cleeng.com. [login to view URL] should be integrated next to the old payment gateway and website function. Video uploads are done on vimeo. The videos can only be watched when a request comes from [login to view URL] domain so that is how the videos are secured. You just have to integrate cleengs service in a userfriendly way in the front end. And also in the backend. (The integration of videos on the website works with an embedded link btw.) The integration itself is pretty simple and shouldn´t take too long. But keeping the old system running conveniently for the users which are still using it worries me a bit. Please contact me for further information.