need 9 speed front derailleur for dura-ace bs77 bar end shifters.

[Strelok]

I am not sure what to get. I will be using the sette reken frame and these bar end shifters.

I was going to use a deore rear and now i'm not sure what to use up front.

I will be using a Shimano FC-M590 Deore triple crankset

and how do you tell what your "chainline" is gonna be?