Slant six engine EGR valve blank off plate?

Does anyone know of anyplace that sells a nice EGR valve blank off plate for a 1974 model year slant six? This is the plate that you install over the hole in the exhaust manifold when you remove the EGR valve. If so, please provide info - thanks!
Hey, Cruiser; did your EGR replacement fit? I bought a replacement from NAPA and it doesn’t fit near my kickdown linkage. Which one did you end up going with? I’m on the hunt and I can find the EGR with a small profile.