It seems obvious

Testing, testing... If you make one long vertical dart and one short vertical dart and put them together, you get something that works a lot like princess seams. Given the way the final piece will actually fit, this should be a winner. The half-fast press job makes them look a little longer than they are, but the important thing is it gets the right fit with only one piece.

Option 4, Draft 1

Or Drape 1. Rather than try to draft it and hope for the darts to end up located just so, I ripped off another piece of my 1,000 yards of muslin and went to the dress form. I should probably think about how skin tight to fit this outer piece since there's going to be boning and lining and stuff at some point. It needs to be tightly fitted but I've been trying to get it painted-on smooth and that likely won't get it when there's layers to this thing.