is it sent from i.e. a UK address with no customs to go through or from Mainland Europe with possible cutoms complications?

Seems that should work right?

What would work?

Hi there, we have warehouses in the UK, EU regions, and Mainland China to ship products to the UK according to product availability. Sorry that we may not be able to specify that the order will be shipped from a designated warehouse, therefore, the package may encounter clearance events. However, DJI will provide the clearance materials. Hope this is informative for you.

Mine came from the UK when I ordered the Mini2,  came next day.