u/Acrobatic-Radish4207

Hey guys, I've got galvanized pipes underneath my house and the water pressure really has decreased to the point of annoyance. I was quoted 6k roughly for new PEX piping and a new water heater (mine is 30 gallon and in a cabinet). My drops into the pipes (crawlspace) I've been told are already copper so it's the pipes only, from the road and in the house. It's only one full bathroom and a kitchen of course. Does anyone know if this is a good price/have any recommendations of plumbers who could do it as well? Thanks all