The saga continues.....
Having had a couple of different shops look a the frame and tell me it would be no problem dropping some 700C wheels in, I bit the bullet and got the rear wheel made up. It looks pretty good, and I've been trying to find suitable parts for the rest of the bike. Having got to the point where I wanted to find a front wheel to go with what I had (I couldn't easily afford to get both wheels made up at the same time) I've been into a mainstream chain and they advise me that I'll not be able to find a suitable 700C wheel in a standard shop.
I got the the mechanic to explain, and it seems the drop outs on the forks I have were designed to accommodate top hats (? Can someone explain what these are) and a super skinny axle.
The old front wheel had a dynamo hub (which I still have, as pictured).
If I was to put an off the-shelf 700C wheel on the axle would be too small; there's big gaps between the axle and the internal edge of the drop out. The mechanic suggested going to ye old fashioned bike shop/frame builder and to consider getting the forks re-forged. I honestly don't think the bike is worth getting someone to re-forge the forks (it sounds very expensive).
I could get the front wheel made up with the dynamo hub I suppose. Does anyone have any experience of these; i.e. are they easy to repair (for a shop) if faulty, how do I know how long the axle will last.......
I've gone from being confident about the progress to being completely flummoxed......