Rebuilt the 670 today. Started at 11:00am, finished at 4:00pm. Did it myself going at my own slow pace. Since Covid my stamina just isn't the same as it used to be.... I replaced the cookbox which was warranteed by Weber. Bought a new manifold(came with knobs) IR burner and burner box and IR gas line. New electrode and thermocouple. New heat shield.I had a new control panel sitting in the attic, weber sent it because the old one was worn out. I do have a brand new hood on the attic, but couldn't carry it down myself. New Flavorizer bars are RCplanebuyer Truthfully the old cookbox wasn't rusted as bad as I thought it was, but after 13 years, I wanted to fix this grill up. Frame was great except for some tiny rust spots which I touched up with some spray paint.