How much do you want for the frame? I know someone who is looking.
For your question, I think it's more of a taper issue, not a spindle length issue. Use the BB that the cranks came with and you should be fine.
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I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC