Basically you're looking at a CPL/IR with an SEP rating.
You don't say what (if any) experience you already have, but to go from nothing to being qualified for such a job you're talking the best part of £40k. If you were really committed and happy to live in a cardboard box in Florida for a year, coming home with a JAA CPL and FAA PPL/IR and converting your IR in Spain, you could probably knock at least £10k off that.
Whichever way you look at it, it's an enormous outlay which will only return a subsequent salary which is modest at best.