Wanted: Steel or Ti Gravel/Adventure Frame - 54cm

Looking for a 54cm Steel or Ti Gravel Frame

Fork not necessarily a requirement

• 31.6mm seatpost idéal
  
• 44mm head tube essential as I have a 1 1/8 to 1.5 fork i will use
  
• 54/55cm depending on stack/reach
  
• Flat mount disc
  
• BSA or other threaded BB
  
• 45mm clearance on rear
  
• Internal routing ideal
  
  

Not to be too specific.......

Let me know if anyone can oblige

Merci