Are you a pilot? Do you have any experience maintaining and working on airplanes? What do you know about control systems, wing structures, fabric covering, aircraft riveting, etc?
My current kit plane arrived with the airframe welded. We hung the wings and figured out the cable runs, fuel tanks, etc. With wings, landing gear, and tail loosely attached, two of us worked on it for two weeks before it was ready for powder coat. An average guy wouldn’t have recognized what was missing and would have started assembly. That would have led to lots of problems. Building a kit is not a simple process. Mine took two guys two years and includes more custom made parts than I can count. Building it in a shop that had a mill, lathe, and a big three-way sheet metal machine was useful every day. If you’re not familiar, you have no idea what you’re getting into. That’s true for lots of kit buyers. They have no idea how to build an airplane and no concept of how expensive it is. The kit cost is only the beginning. FWIW, I’ve been doing the airplane thing for 35 years. Mine wasn’t my first build.
The mantra of an airplane builder- Put it together, take it apart, put it together, take it apart…. We do it because we love the process, not because we want to get somewhere.
The day your crate arrives is when the reality hits. “Holy ****. What did I get myself into?”