Top Screen Lite version

Let's say you want to replace your ds phat's shell AND screen cover. I have a 3d model to replace the shell in it's entirety here. But when I looked online, I couldn't find any accurate screen cover swaps for the phat. The closest one I could find had thicker borders that covered more of the screen. So I bought a ds lite screen cover, because the ds phat and ds lite have the same screen size. Here's the link on alix. So basically this is just an adapted version of the top shell to accommodate the ds lite screen cover.

What filament to use: I highly recommend pla. I've had failures with petg (although I've had successes too) and I don't have enough 3d printing experience to know why or what settings to change.