I would do it 90 degrees along the length of the wing.
We've make a couple wings like that, 3K dbox at 90 degrees without any spars and they're stiff as a rock, just doesn't look very 'refined'.
Now that there's battle scars you'll fly it without worry and get way better, right?
Ken, yeap, there's definitely a lot of loads on DLGs and many other sailplanes don't see. I'm very interested in seeing how this one turns out and see why it failed.