Sencha is impossible to brew in anything but a Tokoname Kyuusu. Deal with it.

(joking of course, but it is hard to brew in a gaiwan, I gave up and I brew _everything_ in a gaiwan)
You can get many of the pots in that catalog
direct from tokonamefor under 40 bucks _after_ shipping...
Example...
1600 yen + 1700 yen for s&h (EMS, fastest option) = 3300 yen = 33 bucks.
(the S&H is from the exmple given on their ordering page, assuming current exchange rate of 100y to the dollar.) That pot is 16 US dollars! it's the shipping that kills ya.
Or...
2700 + 1700 = 4400 yen = 44 bucks
Just be extra careful to make sure they know what pot you are ordering, send them a picture along with the catalog number when you email them requesting the quote. It doesn't hurt to get the quote, right? If it's too expensive you can just not order it.
PS: I'm about to order the second pot I think.

Yes, all that was really to just convince myself to order it. hahahah.