Kawasaki ZZR 600 12 years of service life (maintenance???)

Hello, I bought a Kawasaki ZZR 600. It stood 12 years and has only 12000 km down and looks accordingly real new ; ) … I cleaned the carburetors since they were completely glued. Before I start the machine I want to change the following things: engine oil, oil filter, air filter, cooling water, brake fluid and gear oil…my question is now whether the ZZR has gear oil at all… I heard that such motorcycles usually have only one oil cycle, so the al What do I still have to do on the machine before I can drive??? Must the machine be retrieved? Greeting, Cafe Racer