I don't think I'd throw it in the trash. Believe it or not, people look for that stuff for correct restorations. You might put it up for sale. You could end up helping someone.
I got two of those cups from a friend a few weeks ago. The handle was broke so the company sent a new one. So I glued the handle on and put it on my desk to use as a pencil holder
I would not trust it, block paint, hold down not grounding it right. See it all the time with point systems just run a small jumper from one of the two screws to the hold down bolt I recommend. Or a metal dist gasket hard to find now and $$$$