One of the products featured at Japan Expo 2007 in Los Angeles this past weekend was a tea room kit [link to Babelfish translation; original Japanese article is here].
The kit is made in Tottori, Japan by a construction company called Wakobo Gu (和工房「寓」) and is the brainchild of the company's president. The kit is made of pine from Tottori Prefecture and is seen as a way to promote the prefecture's products outside of Japan. According to Wakobo Gu, the tea room can be assembled in about an hour.
For the two-tatami-mat-sized tea room the price is ¥723,450, or $6,548.47 at today's exchange rate. The press release states that the company will ship anywhere in Japan but doesn't say anything about foreign orders. If you want us to inquire for you, drop us a line.
It's your own private tea world. Nice (except for the blue tarp).
Another view of Wakobo Gu's tea room kit, with the company's president.