There are only a couple of machine shops I'll go to.....
We had a good discussion, he listened carefully as I showed him my concerns and he agreed 100% with me. He gave his professional advice/concerns as well. The one exhaust seat was the worst, so he is going to cut it out and see how bad the crack is/was. It's a starting place. Then, if it's ok, he'll install a new exhaust seat on all 4 corners of both heads.