Rifleer,
As Armin said what you are looking for does not exsist. However, if you are looking for a world class sword with a "live" blade and have well over $1,000 to spend consider contacting the following knife makers.
In the US you should contact Don Polzien (he just completed a Katana for me and is now working on the Wakizashi for me), Michael Bell (makes them like the used to in Japan...blades start about $5,000 and go up).
Scott Slobodian is another. There is another maker in the Eastern Part of the US but his name escapes me right now (had the blade cut through the metal helmet).
In Japan, you can contact Kuzan Oda, or Yoshindo Yoshihara. Mr. Yoshihara is a National Living Treasure, consequently his blades are very sought after. Which translates into Big Money/Long wait.
All these makers produce an excellent using sword, along with presentation hardware to go with it.
On the commercial side, Bugei Trading has an extensive selection of commercially produced Katanas with live blades.
Rifleer, Im with you, the Katana is my favorite sword in the world.
Les