Wanted: ~53cm CX/gravel thing

Looking for something a bit lighter and speedier for my girlfriend to replace her current 26"×2" town bike. Ideally I'm looking for the following:

• drop bars
  
• size ~53cm for a 5'6" lady
  
• nice, but not so flashy it'll get stolen (carbon frames are out)
  
• 700c
  
• canti/mini-V brakes
  
• good tyre clearance (>32mm)
  
• mudguard mounts front and back
  
• 1⅛" ahead
  
• ideally carbon fork and alu frame
  
• ideally, like £100 for the frameset or something
  
  

I feel like there must be millions of old CX frames hanging around that'll do all the above but none of them seem to be for sale.

Frame, frameset or full bike. Needs postage to Edinburgh.

An additional warning: my girlfriend will have to like it so apologies in advance if we arbitrarily reject what you offer