Sorry, cross post. I posted this at work. I will pull them up at home in Max. I saw your mdl and recalled seeing this same one. I am very, very sorry if I made this post in error.
I will check the details when I get to my home PC. My sincerest pardons it this is all original modeling build from scratch.
I had thought you used some tools to cut down on the poly count and adapted the model. Jut cut the sections up and retexture. A lot of work but doable.
I may have put my foot in my mouth (English for making an 'ass of myself').