Hmm. Their old website domain name is for sale, which isn't usually a good sign.
Even some of the outfits that used to deal in spare parts for them don't show them any more.
That would put you searching on EBay or putting wanted posts on the forums.
I Don’t think so, the gentleman died awhile ago. But you can call the number. I called and his grandson was running it and made a few shell holders I was looking for. But that was 5 years ago.