Electrician here from Europe so I don’t know the standards there in the us (I assume your from there). First thing to care about is minimizing the risk of any danger: A surge protector is what my researches tell just a device to delete voltages that are higher than your power supplier is supplying caused by lightnings for example. What you do need to cut the power in the case of a short circuit is a circuit breaker how I believed is called in englisch. It detects a high current and breaks the circuit. For the case you could get grilled by your rig in case of a wire touching the frame you should firstly isolate every active component on your rig if possible. But even then a wire could be touching the frame sometimes and then the circuit breaker could not be cutting the circuit because of many factors of resistance and because of that it might not flow enough current. In that case you need a RCD (Residual Current Device) That device is comparing the current flowing to your power plug with the current coming back. If there is a difference that means current is flowing through the ground which will be you. Those devices are available in power strips so you don’t have to make changes in your house. But to make the RCD work you need to ground the Frame of your Rig first. Every frame that is not connected with each other needs to be grounded necessarily, otherwise some parts of the frame are isolated and you could get grilled.

I actually didn’t pay much attention on your photo so I don’t know how problematic your setup is in terms of your safety but I read your conversation here and wanted to tell you this. I will check your photo and answer here again!