Paid Membership User Submitted Contents

Hi everyone.

I’m trying to develop a rather simple WordPress membership site. I’ve tried different solutions to accomplish this, but none of them integrate well each others, so I’m here requesting your help.

Here is a brief description: the site should have a registration page (with custom fields that I need to create); the registration isn’t free. Members have to pay a fixed monthly fee (with the first month free). Once payed, members should be redirect on their account page. Here they can create custom contents using a custom forms (with fields that I create for them). Contents is private for each member, and not to be display to others. That’s it.

I’ve used Ultimate Member with Paid Membership Pro, but I cannot integrate the payment with the registration of a new user. Plus, I don’t know what plugin to use to create custom contents.
I’ve then tried s2member, with no success.

Have you any suggestion about plugins that could integrate each other to accomplish the tasks I need? (I’m sorry for any grammar mistake)

Thank you all in advance.

Regards,

Gianluca