The amount of work and skill that went into his building is, to borrow your term, staggering.
But, the one thing that bothered me about the video was at the very end, when he makes the torch to show the inside of the hut. I appreciate that he only wants to use things in the video that he crafts himself, but he is filming himself with what I assume is a modern camera.
Using a flashlight would have better displayed his finished product.
However, this is a small gripe, and for me this video was mesmerizing.
Thank you for the link.