Pixelmon Donations

So i have a pixelmon server with bukkit (nothing to do with this help) so what iw ant to do is i want to include donations because i have enjin donationcraft but the problem is i want people to buy pixelmon but they can't do that because i don't know how to give them the pixelmon or the item id or commands to give it them :/ so if someone can plz help me out then i would appreciate it so much