I found something, but not exactly what you want. There's a model from the spaceship AND a tiny Gort, both from the 50's. This is the link: http://home.kpn.nl/erwin47/
Sorry the Gort ist to small. I think Gort is in reality about 2.5 m tall. I am looking for a robot who is about 25 cm high (Scale 1:10). Thank you very much for looking
The Gort model is a hard one. The one in the movie is made out of rubber. It was so heavy that in the scene where Gort is picking up the actress Patricia O'Neal, if you watch it on DVD you, can see the wires used to support her.
Billy Mummy has kept mum about this photo of him and Gort's missing head. Gort was a polygamist, and the impact of a headless Gort on his wives has been difficult. The picture below is of Gort with his wives in their early years. At least he had good taste. There is no indication that they produced any offspring. This unidentified picture found of an unidentified robo-baby has some wondering though.