I would just take the boat or monorail from the Poly to the MK then from there take the boat to WL. You could always do Uber/Lift or a Minnie Van, but it's cheaper to use Uber/Lift.
OP I just noticed I answered your question that you posed in the title of this thread, but I just realized in your first post you asked for the opposite direction. So which way were you actually interested in?
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