[StingRay]

If the cup is not too bad then you can fab up a patch pretty easy. The basic shape can be duplicated by making a tape template. Remove the tape and cut slits until it can lay down flat. Cut your tin. You can then overlay the original cup with the tin and work it into shape. Tack the cuts shut and then weld them up. This will give you you a simple lower outer portion of the cup less wheel lip and inner. Graft it in. If you have any experience metal shaping they can be fabbed up with simple tools. A hammer and shot bag and a tucking fork and a hammer proper for tuck shrinking. I can post a couple pics later as I have two examples at home.