So i would like to order a full PSP Slim case (faceplate and backplate etc.) and it says that it comes with a faceplate, backplate, UMD door and the trim. My questions are: Does it come with a battery cover? The trim is the silver thing that is around the PSP, right? And if it comes with a battery cover that means all i have to get are the buttons, right? I would appreciate it if someone would anwser to these questions. Thanks in advance!