Sorry to hear that. Yes, the smell you experienced after being shocked by the inverter was your skin - happens to me all the time. RGB lines are usually signs of bad connection or shorted wires and can be fixed. But if the new ribbon didn't fix it and you are noticing burnt parts then it is very likely that it's fried. There could be many reasons, from a sudden spike in voltage to shorted unputs. Don't blame yourself, there wasn't really anything you could do.