Hi KOF,
It's fascinating isn't it. I think it's more likely that the seller of that bike mis-identified it.
Caygill was my first guess for this bike because it was clearly custom built and the person who set up the team was from that area, but he later told me it was a builder from the Durham area, hence the thread.
Where did you see the other bike advertised? Might be worth tracking down.
I've been offered some of the original team race jerseys
I'll do a proper thread for the bike later and include all details.