Configure Boonex Dolphin memberships

I have a site running Boonex Dolphin that will be used to allow independent adult entertainers and dancers to create profiles for customers to see. I would like to offer the entertainers an unlimited monthly membership to be contacted by all customers, or the ability to receive collect messages (pay per message where entertainer pays a certain price to read each message sent to them.) Somehow I need customers to be able to send messages but entertainers only to be able to read them if a they pay. Please send details of how you plan to accomplish this, the amount of time required, and your bid amount.