A frustrating day.  Paul spent the morning enlarging and chamfering the tongues on the 4 loose boards so that we could spring them in.  Jim and I wedged a door in place so that we could measure up properley for having the door wheels made.  Ian resumed painting the suspension units and got everything properly primered.  After lunch Jim and I tried to fity the boards but they were too tight at one end and too loose at the other.  Some head scratching and experimenting showed that we had somehow managed to get the board the wrong way round and the groove on one side in the wrong place.  We then took it off and started to enlarge the groove.  Next week we will try again and hopefully get the roof fixed in place.  Away from the tram I have started to research the brake gear and dash components.    Some photos of similar cars in books have proved helpful.