I ended up fixing the gaskets this morning.
Sanded front and back edges w/ D/A sander:
Finished up the ends w/ Dremel drum sander:
De-greased w/ toluene and installed gaskets w/ copper RTV:
I have an 8.5# pork shoulder smoking in the CG at the moment. There are no appreciable leaks in the gasket seal and I don't think the RTV is going to want to let go of the bare metal any time soon.