I can help and it is so easy and very economical: The company is " Grille Grate " . I replaced the grille grates with Stainless Steel,the Flame Spreaders, and Cover. My grille is a Weber approx 9 yrs old and when i finished with it,it looked fantastic..honest ,,so easy to do. Here is the information, ....
info@grillgrate.com tel. 1-877-380-2527.
They will have all the parts that you need and more,and much less expensive you are going to be very proud of yourself and really it is so easy to do.