Return to operation after long service life Z650 F

Hello forum, ….. I have last week my old Z650F “reticked” which has not been moved since the 90s. Since I need another driving machine, I would like to put you back into operation. Unfortunately, this is already covered and dry for a very long time, but was not started the whole years, or moved. Would you still get it to run with reasonable effort? I would very much like to make it ready again….) Now comes the exciting question to you, what I n so I would have to do everything so that I can make a start attempt? Short inventory and info to you or what I know everything that is bad: carburetor can no longer move with the gas handle, Choke can be pushed in both positions easily. Have once turned out the side screw (to empty.. ?…) ,there was only pampty stuff out. Clutch difficult, 1 gear can be inserted but. Switching up does not work. I know the motorcycle , it ran before KM Stand is 31500 engine all original condition , has never been open. Is it worth it at all if you make a cost benefit invoice . What do I have to do to not produce scrap ? Are there still parts at Kawasaki for these old models ? Unfortunately I am not a very experienced screwdriver ( ) . Is it possible to put the machine back into operation without major problems ? I hope you can do something with the info and help me with my decision . Think sometimes the topic could also be interesting for people who bring an old sweetheart to land somewhere. Greetings from the South Palatinate