I import cos I'm a bit cheap lmao.
People will buy a million things off Ali Express then act like importing a RIF will get you shot, it's a little silly. Worst case scenario yeah it gets held up a bit but it's pretty rare so long as the UKARA is denoted on the package.
Getting a lemon on arrival sucks but the advantage of GBBRs is that it's rarely fatal unless the gun is cracked in half or something. I've had lemons from "trusted" techs and UK shops with some headaches remedying it, so it's par for the course IMO.
Also yeah, USD can go full Zimbabwe Dollar but it doesn't affect NTD - GBP exchange rates.