... and the election can be done in the Australian style, where the election takes place at the same time as the lower house, but the term starts on the appointed time.

On a provincial basis, lessee ...

County of Dublin about 1.2m
Leinster 2.3m less 1.2m is 1.1m
Munster 1.2m
Connacht 0.5m
Ulster 2m - NI 1.75m is 0.25m

If Connacht and Ulster are merged, that'd be roughly:

County of Dublin: 8
Leinster ex-Dublin: 8
Munster: 8
Connacht & Ulster: 6


I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.