I'm in the process of making a toolbox with a pump in it and eventually will make a RIMS tube to attach to it. I will have a PID, SSR, 1500 watt element, and pump in the toolbox when complete. I'll be using 120 for my power. What gauge extension cord do I need to power the toolbox so I don't burn anything up? Also, do I need certain gauge wire to wire the components up? I'm assuming I'd need a different gauge between the SSR and element.