I realize I'm about to get skewered (possibly on my own sword) by my more knowledgeable colleagues, but I'm finally taking a swing at this. Us newbies gotta take our lumps sometime.
I purchased this Shin-Gunto at the 2012 show in Tampa, and have been pouring over my copy of Connoisseur's Book of Japanese Swords.
Below are the vital stats on the blade. I realize the nakago is quite rough, but I think it shows this sword has been shortened greatly.
Length: 68.6 cm, Shinogi-zukuri
Blade Width: 2.85 cm at the Machi, 2.22 cm at the Yokote
Sori: 1.75 cm, Tori-sori (originally, this may have leaned more towards the sai-sori)
Mune: Ihori
Kitae: Itame, Mokume
Hamon: Notare
Boshi: Omaru
Kissaki: Chu-kissaki
Nakago length: 25.4 cm
Nakago shape: Possibly Originally Futsu
Yasuri-me: Sujikai