Descend from the Booker-Buckner col, or on snow close to it, to an elevation equivalent to the toe of the glacier and the toe of the SE ridge. Then you can start contouring under the more NE glacier portion and heading up to the pass.
Two years ago, Tim Halder and I traversed from Dark Peak to Bonanza via Pt. 8599' and the West summit. However, we added a couple rocks to the top of pt. 8599' and it is now just pt. 8,600'