it appears as if our good friends over at abby shot have gotten a license from the bbc to make one for only 300 dollars!?
"AbbyShot Clothiers has designed the ultimate collectible for Doctor Who fans — a replica brown trenchcoat, just like the one worn by the tenth Doctor! Based on David Tennant's costume, this designer quality coat is bound to be your favorite everyday garment! This replica trenchcoat, officially licensed by the BBC, features high-quality wool blend fabric, full lining (color-matched to the costume coat, double-breasted buttoning, detailed stitching on the back, and outside welt pockets with flaps. Available in Men's sizes SM through XXL. Feel like the last of the Time Lords! "http://www.alteregocomics.com/store/catalog/Doctor_Who_Tenth_Doctors_Coat-p-6275.html
"AbbyShot Clothiers has designed the ultimate collectible for Doctor Who fans — a replica brown trenchcoat, just like the one worn by the tenth Doctor! Based on David Tennant's costume, this designer quality coat is bound to be your favorite everyday garment! This replica trenchcoat, officially licensed by the BBC, features high-quality wool blend fabric, full lining (color-matched to the costume coat, double-breasted buttoning, detailed stitching on the back, and outside welt pockets with flaps. Available in Men's sizes SM through XXL. Feel like the last of the Time Lords! "http://www.alteregocomics.com/store/catalog/Doctor_Who_Tenth_Doctors_Coat-p-6275.html