I think i've got away with it. What with Valetines day distractions, the tail end of man flu and around 90 mins of being left in the house by myself the headmasters attachment is clunking away in the hallway every 30 seconds and no one has noticed.
I think that I have a few ex GPO telephone relays in the loft.. Intended to be modified to act as point actuators on a 1950's layout which never got off the ground! Any use to you ??