i'm uk based and have used both buyee through my friends go + use neokyo myself!! I'd personally say neokyo has cheaper shipping and they have the option to make a package optimal for shipping out, so all my packages have arrived very compactly but still all in one piece :) obviously shipping rates differ for different countries but thats my experience!! i believe they also have a shipping estimator on their website so that might help you! have a great week~
a little life hack from a fellow uk based kpoppie - buyee will actually downsize your package during consolidation and will follow any instructions you give them. the trick is to apply for consolidation and then grab the package number during consolidating, then you can either email customer service or open a support ticket on the app/site with your request for downsizing and how much you would ideally like shipping to cost, etc. they'll discard any external packaging and basically do whatever you want ^^
Love the photocards and the magazines i order from mercari but I don’t pay extra for the inspection. I haven’t had a issue so far but I might now I got a mini Jungkook festa card after I zoomed in on the pic it does look abit fake at that point. I had already paid for it 😂 I hope it’s really so far I have never had a problem