Press Command-Shift-C to open to cheats panel (screen will gray).
Type testingcheatsenabled true, then hit Return/Enter on your keyboard.
Press Command-Shift-C to open to cheats panel (screen will gray).
Type buydebug, then hit Return/Enter on your keyboard.
Go into buy mode by clicking or hit F2.
Go to sort by function tab.
You will see a ? box on the top of the menu, its an extra box with "?" in it, click that.
You will now see all the items available to buy in the debug mode.
When you are done purchasing, go to next step.
Press Command-Shift-C to open to cheats panel again.
Type testingcheatsenabled false, then hit Return/Enter on your keyboard.