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.