Customs charges never cease to amaze me, it used to be quite cost effective to ship parts to the UK, it never seemed that expensive on postage and most things didn’t get stopped by customs. UK parcel force charge a packet for handling the package, like what the hell. That’s what you pay postage for, some sellers on eBay
offer a pre customs payment thing. If they offer that it comes straight to the door and is never a problem. Otherwise it adds weeks on and they charge you for the pleasure. In many cases you can double the cost of what the part cost including postage.