Cheers mate
Yep got the central bolt off - problem was no matter which way I twisted/turned/pivoted it she refused to come out. Thought I had it sussed by slightly bending it which is when it snapped clean in half
It is a pretty clean snap so I could glue it back together if required, but might try running without it for a bit and see if I notice any difference.
Had me rather confused on what the hell the seemingly useless vertical plate bracket was on the rear of the bike... did a bit of forum searching and figured out it is where the helmet lock usually is. Dunno what happened to the one on my bike but she certainly isn't there anymore! I'll chalk that up as a win for weight saving.
Next job is the coolant distribution rail thingos on the front & back of the motor look. They look absolutely terrible at the moment due to corrosion, so will rip em off and clean them up a bit.