For some strange reason I can only post photos and not text on the phone app....
The above photo shows an NIR themed day on the layout-233 works a down Enterprise,while 112 and 8113 work an RPSI GM railtour,
208 works a relief to the Enterprise.
Kevin-to answer your question,I do believe that two NIR 111 class locos worked a railtour in multiple working form about 25 years ago.