PHOTOS of structural DETAILS that are not easily visualized by just looking at drawings.
BIG HINT: By building even a small mock-up, you will make far fewer mistakes, and will progress faster, and with fewer snags. I recommend building a stick-model directly on the drawing, and then color coding the different tubing types and diameters. Double, triple check that you have it all coded right, and you have a quick reference you will use daily. Building the stick-model will force you to consider how the various parts are integrated in layers--especially slab fuse sides that look deceptively 2-D. The DETAIL photos I'll provide from time to time capture these nuances.
