I have six kitchen receptacles on a 20 amp circuit. Two of them above the sink. I checked the panel and it is a standard breaker. The circuit feeds only the receptacles in the kitchen. I have found no gfi protection for those six receptacles What I want to do is pull all the receptacles and replace them all. The first one with a gfi, as to protect all up stream. Or do I buy standard receptacles and replace the breaker with a fault interrupter. The house was built in 1977 in Cleveland Ohio. I am looking for the best most up to code way of doing this project. Cost is not a factor.