Hi Martin.
Nice to see another Dougie owner just up the road. I'm in Victor. I inherited dad's T35 and D1 Bantam (which was originally mine) recently, so we have a couple of bikes in common. I also have a '72 Honda 750/4 and a '76 Honda 400/4, '69 Cooper S and '71 Rover P6B.
I probably won't be able to offer heaps of help in the rebuild of your Dougie, as I'm pretty new to them myself, and have only learnt bits and pieces from my late father, but this forum is a wealth of info with many people willing to pass on everything they know. There is also a chap down here who has one around the same vintage as yours and has a mechanical workshop business, where my father spent a large number of hours tinkering! Handy to know!
Would be nice to catch up with you one day - look us up if down this way!
PM me if you want to chat.
Cheers
Peter.