Thanks Nino
Monitor was removed safely about a week ago.  Thanks for the tip.  Re the rings on the neck, I may have moved one slightly but put it back where it was.  Time will tell if I need to fix that error.  Agree re the monitor - I will keep it and will not use LCD.  The restoration is not cheap as various bits and process cost $$ but hey... that's what I wanted, a faithful resto of what i played as a kid