My wife is an Irish citizen but I am a US citizen.  We are looking at moving to Ireland.  The complexity comes in that I am currently unemployed and she is working so it makes more sense for me to go and get a job while she wraps things up in the US.

Without her with me, can I tell immigration that it is my plan to stay and she will join me (within a few months)?

If not, am I best off getting a critical skills visa to get working and then notify immigration once she arrives?  Will this complicate getting the stamp 4?

Anything else with our situation that anyone can make suggestions on?

From a more practical perspective:

• Does anyone have any strong recommendations for moving companies we should either definitely look at or definitely avoid?
• Does anyone have any recommendations on private health insurance companies in Ireland (again good or bad)?

When we looked several years ago, I believe it was 3 years of residency in Ireland for us to qualify for public health.  Is that still accurate?

Is it still 5 years of residency before I can apply for Irish citizenship?