I like how those gussets interlock.
Your fuselage looks great so you should finish the rest; scratch building suites you anyway. With bracing it will be stronger than normal model construction for most things, but your margin for error lessens. Many commercial jigs are very similar to yours in concept. It would be nice to see you build a Dr1; last week I started a Proctor/VK one and I am about where you are at, fuselage wise.