Sadly Aidan passed away one or two years ago. Aidan states in note 1 at the end of the paper that this is a much shorted version of a project completed in 1980 in part fulfillment of the requirements of a final year specialist honours history course for a BA honours degree with the open University (UK). He subsequently obtained his doctorate degree at TCD, and spent several decades researching and publishing about medieval Irish history. The original project report from 1980 referred to above might exist in the papers he left behind. His papers might also include copies of the Link magazine referred to, and photocopies of other relevant material. I don't know who might have his papers now. His brother Ray lives in Gorey, and maybe his nieces and nephews also. One of them might be able to direct you to where his papers are, and whether there are any useful material among them. They might also have anecdotes from Aidan relevant to the workhouse.
I hope this helps a bit, and I look forward to you completing the book.