Sending a kit costs us a bit over an hour of effort. That is our time amortised over batches, if you just consider the parts logistics, mail handling, accounting, and of course the parts counting and packing. But we've gotten quite good at it. (Well, Walter has. My skills are lagging.)
There are a couple of unboxing videos out there already. It's about time to show what happened just before we went to the post office. Enjoy