I had one version from him at one point where it was about to be finished... but then he decided to do more work on it... then he disappeared for a few years. When he returned, I showed him the SCP and HTL, and he began work on an HTL version... then he just dropped off the face of the earth for a nother while, until recently. He no longer does anything with FS, from what he told me the last time we spoke.
And yes, that model is as old if not older than Machina Terra...
Its not mine to say if it should be released or not. From time to time, Psycho pops on AIM, if you want I'll tell him you have it, but I think he has several versions already. I dont know for sure though. Ill tell him.