Gav, that's a bit of a gamechanger. Pleasant place to live NI (esp nowadays as don't need to tell you) but finance industry is miniscule, with just a few private client satellite offices in Belfast. Most people interested in finance as a career move away from there. I know of what I speak as my...
Wealth management/private client stockbroking is your way forward I'd suggest. Lot of ex-army officers employed in this industry. IMC is a good start and the CISI diploma would prob be more relevant for wealth management than CFA tbh and a tad easier. CFA primarily for institutional fund...
Have a look at Judge (Cambridge) decent GMAT score will get you in there and the course is pretty straightforward, only 45 mins from London and you graduate a Cambridge alumni.