factory cassette recorder

This is the setup I'm looking to complete. I was told by some members about 'Harms" and how he supposedly reproduces these plastic pecies, but when I called there, the gentleman said he did not have any at this time, that he wanted to sell, but may make some, and to call back in a couple weeks. He was more interested in talkin about my duster. I never even bothered calling back, as I hate dealing with these type of guys who say they have one but can't sell it...they may be reproducing some in the future, but not really sure, bla bla bla. Either your in business and have parts to sell or you don't. He was a nice guy and all, but not really anxious to help me. Not the type of outfit I want to deal with. I just got a bad vibe from this guy.