we dont know which other Irish tartans to try..we are open to ideas...
I doubt saffron is trademarked; doesn't get more Irish than that. The trick is getting the color right.

How about Isle of Skye?
Yes; a lovely tartan. Will you no longer be carrying McLennan, or will it be a special order?

took me quite a while to figure out what "being a PITA" meant!
My wife in her inimitable fashion acquainted me with that term a long time ago.