The petrol tank valve got sorted and twisted to the correct position. The petrol tube from the carb was attached and the tank installed in the frame. We haven't tested it yet for leaks but will do so next weekend.
In a moment of sheer inspiration, number 1 son installed chrome trim around the front mudguard and what a transformation that made. It also resulted in the decision that all edging will now be finished in fore mentioned trim!
The troublesome steering fork was dropped (again!!) and the bearing races removed to be replaced with individual 4mm and 8mm ball bearings. We had lost some of the original ones when disassembling but managed to finally track down a supply. And what a difference that made. The steering tightened up completely - no rattles, no rocking. Tight! Which is great except that it seems to have bought the mudguard awfully close to the legshield and whilst the wheel can be turned easily from side to side without scrapping said legshield or protruding nuts.....it does seem awfully close doesn't it! Too close perhaps?
Anyway we have returned to the two forums (smallframes proboard and the Vespa Club of Great Britain) to ask the experts what they think. They have saved us time and time again and I'm sure they will now.
We've started tackling the headset. The white rubber throttle and gear grips are on; the throttle tube has been inserted into the headset. The gear tube would have been until we discovered we are missing a white rubber washer - how irritating!
So...we are making progress. Our aim is to have her complete for half term in 6 weeks time when we will try and start her up all being well.