then you dont know how difficult and how much competition there is to get into that scene!!!
I suspect that they do know!
If your research lead you to the conclusion that it was a difficult area to enter, then why continue without further research or a plan B?
So, to answer your questions in order
1) an FAA IR is pretty much worthless in the UK and, unless you have the right to work in the US, I'm not sure why you'd go that route. A JAA IR may get you a job in the UK or it may not. As my very good friend Camp Freddie says,
IR= high risk, high reward
2) No.
3) No.
Cheers
Whirls