It took a while, but I finally got to clean up the Metaseq model.
No more @!#$D(*$@! deleted vertices and faces message from Pepakura!
Here's how the initial unfold of "half" the model looks like:
Now it's time to freeze all the mirrored objects to produce the final wire frame. Once done, I'll do that full unfold.
What follows next would be to start working on the fuselage and wing fillets/formers.
Oh yeah... this is turning out to be yet another model with a bazillion pieces! :)