Of the five of these coaches two 1904 , 1905 & 1908 had Great Southern type bogies and two 1906 & 1907 had Commonwealth bogies , only one 1906 was fitted to work in railcar sets .
Great stuff ttc0169 ,I love the publicity shots at Killiney and the Vale of Avoca on the DSE even though the Mk2s wouldn’t see service on that route until 1987 .
Great work on the van I think it unlikely that IRM would do this prototype van as there were so few of them even pictures are rare ,if they were doing palvans they would most likely do the 26001 type which were more common.
Very interesting stuff one of the details I spotted in a picture of a grey H van in the 1970’s from Jonathan Allen is a painted handbrake wheel possibly yellow which is very unusual this might add an unusual detail to your repaints .