Wanted: Small Road Frame & Forks. Steel. (For Campag NR Group)

Looking for a small steel road frame...

My wife's frame is too large and she's looking for something smaller we can switch a Campag Nuovo Record Group on to.

We're tentatively looking and in no rush as its for summer, so really open to all sorts. Ideally would be more of an Audax style frame, something comfortable for longer day rides. But again, not too strict on this and would consider more pure race or touring orientated frames.

But must be:

Around 48-50cm c-to-c seat tube (bit of give depending on standover)
49cm - 52cm (absoute max) c-to-c top tube.
Steel
700c wheels
Decent paint, not in need of respray, no dents or dings or rust etc

Preferable, but not vital:

120mm rear spacing
English Threaded
Threaded Steerer - 1 inch forks.
No shifter braze ons (as have band on ones or may use bar ends)
Mudguard eyes / Slightly larger clearances to fit mudguards
Classic British / Italian
Audax rather than pure race
1960s to 80s would be ideal...
...but doesn't have to be strictly period / vintage. Modern steel considered - if adaptable in the first instance at least to the Nuovo Record parts we already have as can't afford to buy alternatives at present. Could modernise over time.

In Edinburgh so likely to need posting. And price ideally needs to be sub £200.

Still on the lookout... I have an R J Quinn road frame/forks. Lovely chrome lugs and stays and Campag ends if a swap is possible. 53.5 cm seat / 55 top cm. Let me know if interested.