Mac Resolume Arena Installation Help

I need Resolume Arena up and running on my Mac as soon as possible. I have not bought a licence yet, so the first step will be your guidance on which licence tier suits typical live-visual work and how to complete the purchase through Resolume’s official channel... (Budget: €8 - €30 EUR, Jobs: C++ Programming, Cocoa, Installation, Mac OS, Objective C, Technical Support)