Unfortunately there has not been a lot of detailed reference material published on R-R a/cs and when you narrow it down to Irish ones there is even less.
There is a little bit on the preserved car here
http://www.esatclear.ie/~curragh/sliabh_na_mban.htm
and some more shots on this flickr stream
http://www.flickr.com/photos/7700258@N05/sets/72157601074578805/
HTH
Aidrian