You're right, I missed that.
Well, the pattern from the Alpha Wing mission does resemble what I've got on the left-hand side of the map (with Nav1= Gateway, Nav2=McAullife and Nav3=Dieno). I'll have to check the distances between those points though; they may be further than "20,000 clicks out". If that checks out, though, I can move the rocks from the Gateway jump to the McAullife jump.
EDIT: It looks like it'd check out, if the 20,000 klicks refers to the distance of each point from the Claw and not from one another.
And of course the Epsilon Wing mission could be at any one of the jump points - the target system of the Drayman isn't specified.