WTD - Build bits: Bars (pref flared), BB30 cranks, Di2 stuff, seatpost (27.2mm)

Building up a gravel bike so a few bits are next up on the eternal hunt for bits.

• Bars, preferable flared and alu 40-42cm wide but open to Carbon if they are in good nick
  
• BB30 cranks, will be running 1X so also need a chainring to go on these. Looking for 42-48 up front
  
• Di2 bits: New to this but know I need a fair bit. Internal battery, junction splitter, bar end junction box, cables for sure
  
• Seatpost: as for the bars, something with a bit of compliance would be grand
  
  

Bit niche with some of these requests but let’s see. Cheers in advance!