Joomla EventList Confilct / Customization

I am experiencing a conflict between the MooTools used in EventList and Ninja Shadowbox. The problem occurs when a user attempts to add or edit an event in EventList. When I disable my Ninja Shadowbox module everything works fine. I would like to continue using Ninja Shadowbox; therefore I need a developer to resolve this issue for me. Below is a brief description of the issues need to be addressed: - Save button should be styled the same as the cancel button. - Both the save and cancel buttons should be next to each other as on the add venue page. - Select venue needs to be repaired so that it opens in a Shadowbox. The select venue shadowbox should be styled to match the rest of the site. - Category field should be set to visibility=hidden and “User” should be selected by default. - The pop-up calendar for both the start and end date needs to be repaired and functioning properly. - Repetition needs to be repaired and functioning properly. My budget for this project is $75US or less.