With the difficulties I had finding 15th century Germanic sumptuary, I determined that 10th century Irish would be more difficult and thus far I've not been proven wrong. In my search tho, I found the following link. It's more general and explains some of the sumptuary practices, but without references, so it's more for an overview than anything. [http://www.geocities.com/davidbofinger/sumptuary.htm]
I have a book concerning the history of Ireland, so we'll see if there is anything of value in it before I expend too much more time on searching for something that some sites have indicated may not have been there during this timeframe.
