Always seeing Genuine Honda NOS parts in Thailand on eBay and always skeptical . However, I needed NOS exhausts for my '68 CD125A sloper and only ones I could find were in Thailand , so I took a gamble on them and bid for them. They are MEGA rare so I had to pay a lot of money but when they arrived, they were exactly as described, perfectly packed and I only paid 25 quid duty including Parcelforce's rip off 8 quid adder.
I suppose loads of 'tiddler' bikes were sold there so possibly more NOS spares around than over here. Will definitely take the 'risk' again.