IIRC there was a proposed refanning with Tays which would have made the 1-11 into a low acquisition cost aircraft to be exported to airlines in developing countries.
Robert Maxwell (!) had the same idea many years ago in a proposed project with Armand Hammer, which would have seen surplus Tu-104 aircraft bought from the Soviet Union and fitted with the JT8D. He obviously couldn't fit it in to his pension robbing schedule.
Both aircraft shared the basic factor of being built like a tank, and it could have worked if there was serious industrial muscle (like BAe) behind it. It's like the 707 programs to refan them, without Boeing on board then they never really seemed to go anywhere. The 1-11 would have been a cheap and rugged frame to bolt Tays to, not needing excessive amounts of fancy rewiring to do regional services in the third world.
ROMBAC (?) was also looking at Tays for their Romanian built frames, or even new builds. I think that may have been the project that could have borne fruit as their frames were the youngest after all.