What others have said is correct. It's not a stock tartan from any of the mills. It CAN however be custom woven and made into a kilt for you. While not inexpensive, you would be able to have your choice of weight (13 or 16 oz) and color palette (Modern, Ancient, Muted or Weathered).

Several of the advertisers up here can do this for you at varying costs (depending on the supplier). USA Kilts (my company) will do a custom woven 8 Yard kilt, fly plaid and matching flashes for $749.99 delivered (in the US... international will be $32 more dollars for shipping).