I spend a fair bit of time in Japan and can tell you that the Japanese go for the brit style cafe's big time.
The real thing is quite hard to obtain out there due to the incredibly strict import laws, so they settle for converting their home grown products.
The Yamaha SR500 is one of the most popular.
Big twins like the Kawasaki W650 are also very popular cafe conversions.
Some of the bikes they turn out are nothing short of incredible.