For replace a HDMI port it's very very easy for someone with the good tools and the exprérience, but not a repair for someone in the beginning of repair, cause you can damage the motherboard and the repair of the damage gonna cost you minimum 3x the cost of a classic HDMI repair (and good luck to find a repair shop that not gonna say no to take the console or worth take the console and two week after say the console is unfixable and ask you some money for the "expertise").
So sadly iIcan just say search for a good repair shop in your area know for doing this type of repair cause good repair shop doesn't mean good console repair shop