Mike,
Welcome. It's good to see you've found the forum. I'm no expert on your year or model, but it looks like a great project, or, just ride it as is and enjoy if that's what suits you. You will find lots of help here, as you may have already noticed, particularly for your bike. Just look at our administrator's bike on the BSAGoldenFlash intro page.
By the way, I'm not exactly sure, but you may be our first Kiwi. (If I have overlooked some other Kiwi I should actually remember, please write it off to brain block.)
Richard L.