They tried preformed houses in the 70s and they didn't catch on. I think the issue is maintenance. Where you gonna get "V9 Gen6 Vessel" outer shell 10 years from now? I think you want boring and practical so you can fix it and not make it look bodged.

Looked it up
>Our prices range from £45,000 to £92,000
Is that reasonable, IDK, maybe if you expect it to last 10-20 years and dispose of it after?