Build an Whitelabel Agency Plan for my SaaS

I have build a shortener link services and would like to have an agency plan where clients can whitelabel my service and charge their clients. Yup, client's clients are charged without knowing I am the one behind it. I would like: 1. whitelabel domain name 2. agency dashboard (check their clients' limitation) 3. whitelabel agency's client dashboard (can be customized by agent to have a perfect css template) 4. edit my current payment system (currently it is only PayPal and want to integrate with Stripe also and add coupon features) Message me then I will provide the source code for you. Please mention how you gonna build these, libraries used or related portfolio. Thanks