Last summer I was wanting to buy some left hand and right hand 9-4 and 9-5 props. In looking around at what was available, I wound up on the Xoar web site in Japan. They had what I wanted in an IC prop in their listing ( as a gas powered quad copter prop, I believe,) and I was guided to a couple of US importers, large R/C hobby shops, that could put them on one of their orders, and then I would buy them from the importers through eBay. It took a while for things to crank through their system, but I ended up with what I wanted and didn't have to pay any excess fees or shipping. I'll back track and see if I can find out who that was. If you have the Xoar part numbers, that would make it easier to go that route. I was working with a woman in Japan who was a member of the Xoar family to get this initiated. Anyone interested could probably do it in a similar fashion if you can deal with the time it would take. i would be interested in a few of each size just to play with. I'll round up information and check back in tomorrow sometime.
Type at you later,
Dan McEntee