Are you still working on Ancient Platinum? I was going to attempt the same thing, but I saw your project, and you definitely got the idea first, so I thought I'd hold off unless your project was dead.
Sorry for the late reply, It's not dead but my friend who is working on the project with me is creating Ancient Ruby while I am working on my main project, Pokemon Orange. So far it's mostly just graphics so if you wanted to attempt it and use some of our assets you are free to do so.