WTD: 1950s/60s parts (hubs, cranks, stem, handlebars ...)

Hi!
For a new incoming frameset I recently bought on here, I am looking for some 1950s/60s parts, suitable for a classic British lightweight:

• Handlebars: "North Road" modell as width as possible (at least 18")
  
• Stem: nice steel stem with zero or low rise, long steerer and 89-90mm
  
• crankset (not cottered) like Stronglight 49D or so
  
  

Thanks for checking!
N.