Update.
My wheels came from Tartys yesterday, superb service, so I took them to my dads to try them on (the bike, not me) and found that as the frame is so old the dropouts for the axles are a bit too small to take the new wheels so they'll need fettling with.
Managed to take some pics though which I'll post when I get home, next step is grinding out the dropouts so the wheels fit nice, adapting the Tensile maggy mounts to work on a V mount so the rear wheel actually fits and stealing back my IRC Kujo's off my dads bike!!