Oops, I bought another bike. I'm not keeping this one though - it's a surprise gift, or will be when I've changed it to a fixie.
1980-ish 23.5" Holdsworth in an appalling poo brown colour. 531 butted main tubes. New-looking Brooks B17. Centre-pulls, Campag hubs, decent kit, nothing is rusty, has a proper chainset where the inner ring can be removed. I'll respace and redish the rear wheel and I have a 20T that can screw on there. It won't need a lockring if I use the Chainwhip Of Thor, although I may use a BB lockring and a bit of threadlock just in case,
Only downside is that it has 27" wheels, but they'll be ok until the rims wear out (alloy) and the brakes will easily reach 700c.
I could strip it for parts and easily get twice what I paid for it, but that's not the point.