If your dealing with a head gasket issue, its likely there is damage and reusing it wouldn't be advisable. The intake gaskets are also a coated metal, but with all these gaskets if there is no damage, they can be reused.
I think for the intakes you could simply use gasket maker with or without the gasket.
Some have tried to recoat the MLS gasket, but keep in mind that too much coating or too little on the head gasket will cause seal issues, but has been done successfully.
Then there is the issue of these being crush seals. I haven't seen an issue of the seals having been unable to make a seal for the intake. It was always related to the coatings...