Bits needed to finish off build

[Hicky]

Hi people,
I need a couple of bits to finish off a build I'm doing for the ball n chain. I need a;
1 inch seatpost in chrome,
8 sp deore rear der.....I've got one but its quite scruffy.
BB 68 x 122.......thanks

 

[MisterStan]

I may be able to help with the derailleur - will check my bits box when home.