It was certainly a challenge. The diagrams were really well done, but some parts of them were really hard to make out, and I have perfect vision. And like I said in the OP, my back is really sore today. Normally I would have done something like that at the dining room table, but SQ is working from home and that's her desk. Plus the cats would have bothered me constantly while I was trying to concentrate. So I used our patio table and sat in a folding chair, bent over at the waist pretty much the entire time. My thumbs are also shot from pressing the pieces in. I didn't anticipate the physical toll this thing would take on my body.
For anyone interested in trying one of these out, here's the page that has all the different Gator stuff you can make. I'm considering doing one of the Albert ones in the future.
Florida Gators