Wanted: Dura Ace FC-7610 BB

Hi !!

I am looking for :

• Dura Ace FC-7610 BB (sealed bearing, 109 mm, ISO square, English thread-BSC),
  
• Dura Ace FC-7600 Black/grey chainring in 1/8 in 49T to 51 T.
  
  

I would prefer it NOS ;) but I let's talk about what you have.

Thank you !!