How do I make a template for artwork?


I am building some arcade sticks from scratch and need to get templates made up for the artwork layout. My attempt so far (using PS itself) has been to run out a bunch of guides and use the ellipse tool for the corners and so on. It is taking forever and I have several different layouts to do and don’t want to be here all night… This is becoming frustrating as I could have this ready in Sketchup in about 3 minutes…

Any suggestions, other programs that would make this easier to do? Is there a way through a SU plugin that I could export a 2D graphic and bring it into PS ready to go on a layer?