Mildew smell - can I clean it?

There are a few signs of rust, but in general it just seems to have a lot of mildew smell about the whole thing. It works fine (except for the top agitator, which I am ordering parts for btw), but the machine itself just smells. Can I just take the frame off somehow to clean it? How do I do that? And what should be my cleaning agent of choice? Are there any seals or gaskets that I should replace while I’m in there?

I’ve seen some great deals on new appliances lately, but they don’t make them like this one anymore. I’d rather fix it up like new than go buy another one.