Well, I got it finished and after a couple of local shakedown rides I did a big ride on Saturday, just under 60 miles over to
@jonnyboy666 at his shop.
The purple is much deeper and less blue in real life, a nod to the lilac and black Witcomb racing colours.
The bike is a light retromod, definitely a rider not wall art.
So it's fitted out with 1999 Campag Record, TA Alize Chainset (because the Q-factor is far lower than a Campag triple),
Campag 1996 Record/Ambrosio Excellence wheels, Conti GP5000 28mm and TPU tubes,
(The winter set is a Veloce/Chorus mix with Ambrosio Balance in lemon, Michelin Pro4 Endurance)
Tektro R559 brakes (originally a 27" wheel frame I suspect)
Tange Levin headset, Cinelli 64 bars with Brooks tape (and another layer of old Profile tape underneath on the tops for comfort),
USE seatpost and San Marco Regal-e saddle
All up weight including pedals, mudguards and bottle cages is 22.7lbs / 10.3kg. So I suppose it could be brought down close to 20lbs / 9kg.
I'll be re-fitting the rack and dyno lights for the Dunwich Dymano next month.