Hi @josh_.
Those standard Mark III's in that video are not LIMA as you say but repaints of Mark III coaches from Hornby (I think)- it was a good few years ago.
They then had modifications such as the windows on the doors added.
Hope it helps- well spotted!!
Sporting its brand new 'Inter City' livery, 229 leads the liner waiting at Heuston North freight yard after earlier arriving from Ballina, before heading to Ocean Pier.