Those are great ideas, but don't ya think it's a little bit silly to use textures from a game that was released over 10 years ago? Wouldn't a game with better graphics (Like Twin Snakes) be a better idea? I mean it's not a terrible idea but porting models from TTS would make more since. I don't hate MGS1 imports, but you get what I'm saying right?
Not really. Every model has its own visual appeal. The original Metal Gear Solid was praised because it was able to show so much detail in such low-poly models. Not only that, but the original Metal Gear Solid was so memorable in that it had a very deep storyline for its time. This nostalgic game was referenced several times in the Metal Gear franchise, and you can even unlock a "MGS1" mask in Metal Gear Solid 4.
There is a visual appeal to this model, you just might not share that appeal or understand it.