1981Gpz 1100B Remove rear wheel

Hi There, I picked up a GPz 1100 for free, I need to remove the rear wheel but it looks like I have to drop the exhaust to get the shaft out? I am a little worried about removing the exhaust and breaking studs. Is this really what I need to do to get the shaft out?

Sorry I have tried multiple times to get pictures to work but have not had any luck