On a side note where does one find pots like this?
at the risk of sounding glib or (worse) coy, that depends on how much you want to spend.
i've had good luck with the japanese nurseries on eBay, although some of them are inflating the hell out of their list prices for the west. you can also order directly from the tokoname website. for example, this one's fun (albeit, around $50 + appr $12 SAL shipping to the US).
http://www.tokoname.or.jp/bonsai/nanpei/san032e.htm
http://www.tokoname.or.jp/bonsai/nanpei/
as much as I hate to say it, if you're on facebook check out (and join) the BONSAI CLASSIFIEDS page. they're now running an auction every other week & there's been some dandy containers on there. like all auctions, it's hit and miss --- but, it's diverting just to watch.
oh, if you ARE on Facebook and haven't already LIKED the potter / mame artist haruyosi I'd encourage you to do so. he doesn't sell on there, but both his pots & his trees are so inspiring it will take your breath away.
don't be shy about asking Ryan to keep an eye out for something on your behalf. I think a lot of people figure that because he writes about high end pots, that's all he brokers. but if you contact him (email details are on his blog) with a price range and some idea of what you're after, he'll send you pix as relevant containers pop up --- or let you know if he's unable to assist. but, he loves the hunt, so like I said don't be shy.
http://japanesebonsaipots.net/
hope that helps