Hey, I've built a few arrows now, some speed builds and some from scratch. I had a crashed arrow and some parts from a micro quad that would do the trick to make the Pizza box plane, but I wanted to have a fuselage to house my lipo and fpv gear. I fallowed the pizza box tutorial and plans, but then cut out the middle to make the fuselage like on the full size arrow, measuring my tattu 450 3s the whole time to make sure it fit. I modeled and printed the power pod to hold the esc. it turned out nice. Oh, and I didn't have a pizza box, on a diet. I do have a kid so I happen to have a fisher price box that was the same thickness as a pizza box.