i'm gonna get my comment in before Rum O'Clock so i can tick the "sober" box.
swapping on here is a good idea, i've bought from people on here before. my impression's this community's a reliable lot.
i'm based in Thailand so there would be shipping back and forth, and possibly tax. if and when anyone wants to swap with me i'd suggest the following terms: higher side pays difference in shipping, and higher side pays difference in tax/duties. here, the tax man's pretty random. my Re.8 duellists landed with NO tax, the tax on a 1/72 submarine kit was equal to what i paid for the kit!
that said, swapped stuff before with people on other continents, it's been pretty easy. shipping back and forth to Australia or NZ is pretty cheap (but international shipping is slow at the moment due to the plague).