WordPress Directory Theme Customization (MyListing)

Hello, I'm looking to turn a directory listing theme called "MyListing" into a multi vendor marketplace for booking photographers. Theme here for reference - [login to view URL] In this "marketplace", photographers can post a listing with their contact, show some of their work and name their own price. The theme allows most of this but not sure about letting them add their own price. The functionality required: 1 - Calendar with Booking functionality for each service provider, so that customers can choose Day and Time for the booking, similar to this - [login to view URL] 2 - When a photographer is booked, that time/ slot should show as unavailable in their public calendar. 3 - Each photographer needs to be able to see their own calendar in their Dashboard. 4 - The photographer would have a dashboard to check his/ her bookings and listing. And all text would be customised so that it's relevant to a service and not a product vendor. Example instead of saying “products” or “sales”, everything should say “Gigs” and “Bookings” etc. 5 - As the Marketplace Admin, I would get a small percentage commission of the revenue for the booking, the service provider would get the rest. Please let me know with your expertise whether this is doable, what plugins will be needed to achieve it and the cost for setting it up + any other costs, for plugins for example. Thanks, Tom