The thing is that since this is going to be more like a "Frankenbike", I'm pretty confident that the recommended bb spindle length won't do. Fsa for example recommends 108mm spindle length but this is for road frames with 130mm rear dropout spacing and not my 135.. I guess its going to be trial and error. Maybe I should go for the crank I like and see what bb length will do the job best to keep a correct chainline and still have chainstay clearance.