Hi Piper
I'm doing my ATPL theory in NFC right now and will be doing hour building then CPL afterwards. Will do my Me/Ir after that.
If you do your CPL in US in a Jar school, it will be through the UK system, and will need to do some sort of conversion for your IAA licence, it may be only paper work, not sure. Did you already do your ATPL's, if so that determines what country you do your CPL in.
I will more than likely do CPL in Waterford and Me/Ir in Weston, as the FNPTII is reasonably priced at 145euro or thereabouts.
Best of luck