Your best bet is to do a forum search in Rotorheads and there will be enough threads there to answer all your questions but,to answer your three questions in a nutshell:-
1) depends where in the world you want to work. Different countries will prefer their own licence.
2) in the UK, the minimum hours to get a CPL(H) is 185 hours. With an instructor rating, this would be 280 hours at, say £250 per hour plus exams, equipment etc.
3) as a CPL(H) with 200-odd hours, your employment prospects are the square-root of diddly-squat. You either need an instructor rating or instrument rating.
If you haven't done so already, have a trial lesson and make sure you can pass a Class 1 medical.
Cheers
Whirls