Jon: Can you describe how you replace the rail along the firebox with a new piece and the inserts? Do you just cut it flush with the front and back rails and then put the inserts into the ends of the replacement piece and run a bolt through the front and back rails into the ends of the replacement rail that has the inserts in each end?
I actually have one or two of the lower rails that I rescued off a grill that I parted out. I am not sure if the inserts are still good in them, but if they are, I guess I could cut out the rusted rail and just plug and play one of those lower rails in. If the inserts are toast, which i think they were, I can just replace those.