Personally I've probably got more than enough in the 10 that I currently have, which is a split between the IR/IE liveries. Though it never stops me from keeping my eye out for them still.
Interestingly, I did notice a couple of comments with regards to the livery that wasn't included in the original run. That being the IR logo without the white band. Here's one of my Dad's 141's which I carried out a little work on. The Catchers should have been removed for it to be prototypically correct, but you get the idea.
Have to admit there's something I quite like about it.