I'll 2nd that bit about the eindecker being a challenging project...behind it's relatively simple and straitforward appearance lurk many intricate details. The functional UC and wing warping are nearly just the tip of the iceberg.
I'm more and more coming to realize that I've picked a bad time to start such a project. Richt now I can only work on it on the order of 2-3 days a month. And when I do I find that I'm redoing certain parts (i.e. wing) or correcting this and that rather than making any actual progress/
The scale(ish) wing ribs are proving to be quite a challenge to make. Balsa is now out of the question as the ribs turn out too fragile (due to the numerous cutouts) so I've opted for thin 1mm ply. This seesm to work fine and would actually reduce the weight of the wing compared to 'full' balsa ribs while maintaining good structural integrity/ might post some pics in a bit.