http://www.modelrail-scotland.co.uk/index.html
Well worth a visit, a smaller, friendlier version of Warley. Flights are also cheap from Ireland at present, given there is no 6 Nations Rugby in Scotland that weekend. Friday is the cheapest day to fly and Glasgow International Airport is a short taxi/train run away http://www.secc.co.uk/attend/how-to-get-here.aspx
The MRSI will be exhibiting with O'Connell Street, and Bleach Green Junction will also be attending from Ireland