Tokyo Phono Cartridge Dealers

I just wanted to know if anyone out there knows any HiFi dealers in Tokyo where I could get some phono cartridges like Koetsu, Shelter, or Lyra.
You need to find a Japanese resident to buy Koetsu as local dealers cannot supply overseas. (Excludes the Black or Urushi as these are 'export' only models.)
The prices are amazing and you would save c.50% of the US retail cost (66% UK) assuming you don't get tagged by your local customs.
Try:- (Koetsu) (Shelter/Lyra)