Set up payments for subscribers to play.

Synergy Chess is an innovative game of double Chess - www.synergychess.net. Currently play is FREE - www.play.synergychess.net. I want to keep the FREE version, and introduce a subscription model on the play. site. I will be adding new features that only subscribers will be able to access. I do not need you to code any of these new features - only the subscription part. You will need to understand Node JS, React Js, Xitrium, and Scala. After signing my own NDA, I will send you limited code to look at for quoting. My programmer will not be involved at any stage. Using Stripe as the payment gateway - you will have to be able to write everything, and show me it working, so all he has to do is load it. The following would apply:
1. Subscription section at the time of registration for new customers to subscribe for the membership.
2. Page for existing users to opt for a subscription.
3. Within the profile after logging in, a page for users to see their existing subscriptions and cancel or renew/change it.
4. Page for transaction history/Payment history for subscriptions.