Well, I waited about 17 years, but I finally have a Mercian.
n+1 is here. Or is that n+2789 (that being the frame number)?
Picked it up today from a guy at work. It's not right yet, but the basics are all good.
There were drops on it once, but he fitted a flat bar when he gave it to his brother-in-law (who died recently). It's an odd ride with the flats, and not entirely awful, but I wouldn't want to go long distances on the flat bars.
You want chromed stays and dropouts? We got them.
Chromed front drop outs too you say? No problem. You want fat-flanged Record goodness with that? Coming right up.
Campag cantis and levers? They're usually here, just next to the hen's teeth... yeah, there you go.
There's a Brooks Champ Spesh in the garage that's been waiting patiently for this bike to arrive. I'll reconvert the bars. The guy says he may have the original bars and brake levers. He definitely has a matching green blackburn rack.
I'm still playing with gear options. I'm going to take my time with this one, because the plan is for it to be my last.
That's the plan, anyway.