Has anyone retrofit their AC system with a ELCI breaker? The surveyor said that this needs IMMEDIATE attention and State Farm has decided they will not insure the boat until it's done. I have looked at the breakers and they will not fit on my existing panel, I can get a $500 stand alone unit and surface mount it in the aft cabin but that seems like overkill for something that will never happen. Protecting swimmers while the shore power is plugged in?