Wow, the hoops you have to jump through to find a price!

5k or 5.5k, depending on variant.

Although to be practicable (not a hobby), you will have to add quite a few "extras".

But not that bad actually! Makes me wonder how it is built.

Velomobiles are a fascinating example of a domain which keeps getting reinvented over and over! The 'glass ceiling' cab has been a feature that keeps showing up on independently developed velomobiles, despite the prior experiences of models like the Go-One and Twike. If the interior is reflective or a light color that doesn't absorb sunlight, it reflects back in the screen, creating glare. If the interior is dark enough not to cause glare, it becomes a solar oven. When it's cool and cloudy enough that the sunlight exposure isn't a problem, condensation sets in.