hey guys, i've been looking around for some control panel artwork for my ZakMan cabinet. i have never used cp art before, always just spray painted the back side of the plexi over the panel. I am pretty happy with the way this looks, but since i am getting ready to convert this cabinet to a vertical classics cabinet, i need to build a new panel. anyway i am toying around with the idea of control panel artwork, and upon some googling, i found a really cool wallpaper that i think would look great. however it isn't high enough resolution to print out at 12"x30".
here is the wallpaper in question:

and here is a quick mockup of what i would like to end up with...

just going to be a 4way stick, trackball and 3 buttons. the buttons at the top are Exit, start 1, start 2, and pause.
i just need to figure out how to create something like this, only at 12"x30" at 300 dpi so i can get it printed. is there a photoshop plugin or something like that? i'm not super awesome with photoshop, but if pointed in the right direction, i may be able to figure it out.
Thanks