>>26821
Well, fortunately for me, I have at least some frame of reference. A US woman left her wallet at my market stall once while I was working in the UK a few years ago, along with money and a bunch of documents and stuff, and proceeded to leave the country the same day. I managed to contact her, and mailing it to her cost some 56₤ or so, despite it only weighing 300 grams. I'm no longer in the UK and it's been some time, but that's the rough number I can give you, which will probably be bigger due to size and inflation.
So yeah, if the mppp thread pops up again or someone else here has one, ask other anons first and see if you can find one in US first, save you some money. If not, I'll be around.