Nice Bike!
Afraid I have only just returned to Bolton after 50 years away, so too young when I left to remember it.
Pity so many good shops closed down.
It came to me with several newer components, which I've been returning to original or at least period spec. The rear rack, both derailleurs and the shifters have been changed, I'm still not sure whether any or all of those are original spec. The front rack is original, I think that's what made it Super.
Seems we have the same Brooks saddle too, though unsure if that was original or not.
I'm happy to settle on 82, seems to be a general consensus.
Yours looks to be a tidy bike.
Coming from a mountain bike I think I'd like your triple chainset too.