Rep
Or go to France/Belgium and ride one back ;) Been done quite a few times for various cargo bikes before Brexit happened, now there is even more reason to do so. Custom's becomes another issue, or maybe they won't notice haha.
Interesting they have gone to Brose now, probably with Bosch + Shimano availability being so dire, for the price of £6.3k, I would say in 2021 that is a good buy, maybe a little painful but Douze gives IMO the best neutral handling (not too sharp, not too doddery), cable steering system that works and is reliable (R+M had some kind of a problem recently though they are keeping the actual details hush hush), big old box, good seats, step through, whole bike splits in half and is realistic to do by the end user given some basic tools, good riding position , moderate weight (same as Bullitt tbh) and well put together.
As I say, wish I could get some!