Hattons have the Murphy Models MM1701, MM1702 & MM1703 RPSI Mk2 coaches - FK, TSO & BSO - Pack of 3 for £69 about €86/€87 + postage.
http://www.ehattons.com/27144/Murphy_Models_MM1701_MM1702_MM1703_RPSI_Mk2_coaches_FK_TSO_BSO_Pack_of_3/StockDetail.aspx