I don't know the GE costs as it is unattractive compared to OWE fares. Why are you booking a GE when it is easily doable using OWE routings? You get about 60K miles of travel for the same price, vs. 29K on the GE, so OWE is half the price on a per mile cost, plus the rules are generally flexible enough. The usual reason to book GE is to get to places that OW airlines do not fly to (but which can be reached on a GE fare), but your routing isn't like that.