What parts are needed for an a/c system in a honda civic 2000 dx that was manufactured without a/c?

I'm wondering what parts are needed to put in an a/c into a honda civic dx
2000. Am I missing any parts?
-Molded heater hose
-Relay
-heater core
-blower motor
-heater valve
-suction line
-discharge hose
-evaporator -
-compressor
-dryer
-condensor
-condenser cooling fan

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