Investigate modification of Event Espresso

Further to a previous project posted we need you to explore if Event Espresso can be modified to our needs. Currently [email address], [First Name] and [Family Name] are mandatory fields for attendees at an event in the Event Espresso plugin. We need to modify this so that only [Attendee Name] field is used. For the billing contact we do want [email address], [First Name] and [Family Name]. The task is to explore if this is achievable and to provide a cost for making the change to Event Espresso. When that work is complete we will award a further project to compelte the work and integrate with Realex Payment gateway.