Have you looked at Odoo?

[derikatwork]

Hi Chris,

I was curious if you have considered Odoo (odoo.com) to bring a majority of your back-end business and CMS tooling under a single platform. It is able to be self-hosted or they will host it as well. I think their subscriptions module may be what you are looking for as far as separating out members' feeds and free feeds, etc.

[gerbrent]

great! Converting to a discussion alongside the rest of the great ideas over at https://github.com/JupiterBroadcasting/jupiterbroadcasting.com/discussions/8