So i have to ask some questions, mostly about the subscriptions:

Can i create a direct link to subscribe a plan? Something like WooCommerce subscriptions but service focused?

Do you work with any affiliate plugin?

Can i manage product for single pay and subscription pay and create direct link for payment?

Once the client pays can have direct access yo the platform/project?

Lastly and this would be awesome... Right now my billing system allows me, ones the client pay something the first time, continue to charging any amount or plan i want without to he do nothing? is this possible? thanks.