Modding is not against the End User License Agreement (EULA), but incorporating intellectual property, or actual elements, from other sources is prohibited. Porting changes to consoles is another illegal activity, due to Microsoft's draconian control of the X-box and 360, but that does not, thankfully, affect the PC version. However, what you are proposing, or asking others to manufacture for you, would, in my opinion as a modder, be hard to manufacture without the developer's toolset - something that is not likely to become available anytime soon. As I said to another poster: "While the modification might be possible, I, as a semi-experienced modder of several other games, doubt that you will be able to bring a team together until you can actually contribute to your own project. People come up with all sorts of outlandish ideas and post them hither and yon, but almost all of them never become anything more than a wild speculation - let alone a usable mod. You are proposing a full-conversion modification, something that would require a tremendous amount of effort, and it is nearly impossible without a dedicated staff of experienced modders - something you do not have, nor are you likely to gather one. I recommend that you learn about the Kot0R tools that are available and start your mod, as that is the best way to convince people that you are serious about the project."