Sodium sulfite--- Can be purchased at a photographic supply place. You can start looking in the yellow pages.

A good dry mix is 1 part sulfite, 1 part salt, 1 part sugar. If you do a search, in this forum, you will find other recipes.

MSG can be purchased at safeway. It will be in the spice section. It will be called flavorite(or something). Look at the ingredients. It should just say Monosodium Glutamate (MSG)

good luck---Mike