It looks like a fine piece of work, though the site's a bit sparse on those rather important details and rather big on hyperbole. How much does it weigh for a start...? 'No compromise' design, eh? How exactly is that possible? All design involves compromise. But if I had £8k to spend on bike/trike(s), I could have:
1. A Moulton Double Pylon. Plus £50 change.
2. A recumbent trike- a HPV Scorpion fs, for example (I don't know much about recumbents or trikes- though I'd like one if I ever had the space and budget- but that struck me as pretty good), and a high-end road bike (eg a Viner Maxima- I mean high end), and some change.
3. A Moulton Esprit or AM, and a recumbent, and a decent road bike....
All of which strike me as more appealing than one unproven and seemingly overpriced trike. I can only agree 4k miles doesn't count as intensive testing. I wish him luck, but he'll need it.....