mbp Cobol

Hi
I am sorry disturbing you from nowhere after many years of a died
software.
I am looking for programmers with (ex)experience with mbp-Cobol.
I have the big challenge to find one or two dongles for mbp COBOL v3.5
for DOS (early 1995) for a very urgent migration/conversion task.
However your message is very old, I hope, you have an idea where could
I find.
Thank for any response in advance.
regards
reka