If you guys want argo flanges on a budget, might try dealerships or anyone servicing them. They commonly buy new flanges with seals rather than refreshing the old ones. Other than the seals, I check them for flatness on a table saw deck and true them with a belt sander. Esp important if you use the cork gaskets. Otherwise with silicone, Whipper plumbing putty, wouldn't be so critical. Seals are common sizes.