Just thinking...are the ones on the right for the WG flange where it bolts to the DP? If so I just used some red high-temp RTV gasket maker. No leaks or issues for a couple of years now.

I dont think I could find those gaskets thats why I went with the gasket maker. Someone coud be making them now so check around first. The real gasket is always the best route to take if available.