Just needing New Wheels? Wonder where they will come from?

I'd get better locks on the bike shed and start chaining the wheels down if I were you.

I have just such a bike at home in a 74? Dawes Galaxy and it is not worth spending a great deal on it. It needs new 27" wheels and not many of them about 2nd hand. I have feelers out with a few cyclists at Scrap yards but nothing coming up yet. Have had a decent set of MTB with disc hubs turn up though.