i know its too late but if other railways are refurbishing them - why couldnt IE? i know, i know...railcars are the way forward ete and blah blah. heres a report from the UK by Railwaygazette....
'On May 28 Chiltern Railways put into service the first of four rakes of Mk III coaches that are being heavily refurbished and equipped with sliding plug doors.
Deployed on London Marylebone - Birmingham Moor Street services, the Mk IIIs are marshalled between a Class 67 locomotive and a Driving Van Trailer equipped with an auxiliary generator.
Next to each DVT is a GFW car inherited from the Wrexham & Shropshire fleet which has 30 seats in 1+2 formation. This is the 'Business Zone' with a small buffet counter, and a supplement is collected on board for use of these seats. The other four cars have 2+2 seating but with 72 seats in the two TSO cars and only 69 seats in the two TSOL cars equipped with an accessible lavatory.'
heres the link for the full report - http://www.railwaygazette.com/news/passenger/single-view/view/chiltern-railways-puts-refurbished-mk-iii-coaches-into-service.html