Strange that they still have a welcoming message that directs you to an extension for the marine division. Who pays to maintain phone and internet service for a dormant company?
The company is not dormant. They just can't be bothered with marine stuff. They are very much there and I drive by it one or more times a week.
This is not to say that they may not have some old inventory laying around and if you talked to the right person maybe could get them to part with it. But I went into their office one time to ask about some part they had shown on their rather odd web site and the receptionist was surprisingly rude, seemed very put out by the question, and told me that they don't sell that stuff anymore. It was as though I should have known better than to even ask.
That was maybe 3 years ago? If you'd like, I'd be willing to go back in and ask for a specific part for you and see what they say. Maybe they've changed receptionists!