1987 diamond back overdrive comp

[Greasyhands]

Hi all, I just got myself a 1987 diamond back overdrive comp frame and fork. I am excited to build it but I only have one problem. I am unable to find the length of the bottom bracket. Would appreciate any inputs here. Thank you

 

[Scvintage]

Re:

Depends on the crank, they have different offsets.. that and pictures help

 

[Greasyhands]

Re:

Thank you! Got it already!