After I purchased my bike this spring, with plans to add a BBSHD, I noticed newer posts about the plastic housing for the rear brake cable & rear-derailleur cable protruding too far out underneath the bottom bracket. This prevents the motor from sliding through the bottom bracket completely. I've circled the plastic housing in green in the attached photos. Do I remove the plastic housing and re-route the cables above the bottom bracket? If that is the case, any suggestions for cable guides I should use? Does anyone know the gap/distance between the part of the BBSHD motor that slides through the bottom bracket and the motor casing that sits beneath the bottom bracket?

It also appears the downtube's thickness (the underside of the downtube that hides the cables in the downtube) prevents the motor from full rotating forward once I do slide it through the bottom bracket. Can I still install & use the motor if I cannot fully rotate it forward? Is the only downside slightly less clearance between the motor and ground or are there other downsides to not being able to rotate the motor completely forward? Thanks in advance!