Well, I am up to the first minute of the video and already
- EOL parts which wildly vary price
- SLS printed parts with custom applied decals
- CNC machined aluminum
- Flat cable PCB assemblies
My conservative estimate is that, at a minimum, this would cost about 1k$ if someone did a limited run, assuming most of the assembly is done in-house. 1.5k$ if assembly is externalized.