Hi Bruce,
With a make shift ignition set-up (points & coil) I got it running tonight. A bit worrying as it took a short while for the oil to circulate. Will now purchase an electronic ignition from electrexworld.
Yes, that was the tank on eBay............ or should I say colander! Not sure if it is worth trying to seal or maybe using as a pattern. (porous rather than a split seam).
Very interested to see pictures of your progress Bruce, I'm sure it will help me make improvements to mine in the unlikely event of my riding ability deserving it!
Dave