pay per user field in ultimate profile builder

Hi everybody,
I use ultimate profile builder – works great.
Now I would like (registered) members to pay for additional information from other members, like contact information, address, etc.
I have two groups. If one group paid the membership fee, then it should be possible for the other group to contact them.

There are many membership plugins, but I need two different registration forms on different pages.

I really can’t figure out how to do that.
I will use only two subscriptions: free and premium.

Does anybody has experience with this?

Thanks in advance for an answer.
Nadirah