I got it first from the US distributor for World Models. It's out in California somewhere. I don't have the url now, but it was fairly easy to find through GOOGLE. They also had a list of retailers who carried WM and my closest LHS was on that list.

I asked them if they'd get the 46 size for me and they said "sure, right away". A couple of weeks later, I asked about it and they said, 'hey, they require a minimum order and we're "working that up" and haven't sent it in yet' He hadn't mentioned that to me anytime that couple of weeks. [:@] I told him to cancel my order and I got on the phone to California. I got it in 5 days. About two weeks later, my LHS owner says, "I got that model you wanted. The delivery guy is unloading it right now." By then, I'd seen how good the sucker flew and figured it was worth having a backup. And no matter what the LHS owner's actions, I figured in his mind that I'd ordered it and since I'm good for my word, I just bought the 2nd one. It's that good anyway. However, I no longer ask him to special order for me.