I'm soooooo jealous! Sounds like a fun trip.
Started on the left wing.
After I started building the wing I realized what Pete is talking about on the plans about "curving to tip". I was thinking the spars would have to be bowed in to meet the wing tip.
I told myself, "Self, that's gonna be a lotta stress".
As I was building, the "fill between spars" started to sink in and I saw the light.
(just a dumb coon-ass edumacated in Louisiana
Also got the top hatch started while waiting around for the wing to dry.
The bottom deck was a little long and the fit was snug for my tastes in between F3T & F5T. So I sanded the edge back (along with the notch) about 1.5mm and it was fine.
The parts fit well, I just like a bit of a gap there so I don't bang up the edges when getting the batts in & out.