How much is hood release cord? how much to install?

You would be better off going to your local Dismantling Center(Junk Yard) They usually already have them removed or will remove one for you. It is usually a cable and is real easy to remove and replace. If you go to a shop--you are looking a about $65.00 for the cable and $85.00 to $100.00for labor. Go online first and look up either "Lexus Tutorials" and see if there is a Tutorial there showing how to R & R the Cable. If not, go online and go to "ERIC THE CAR GUY". He can definitely help you. It only takes less than an hour to remove and replace. Good Luck.