I am curious, where are you planning to get your 1500 hours?
I believe it is very hard to get any job with an FAA CPL without hours. So the issue is where will you get the hours for an FAA ATP?
Cadet programs in the ME are only open for locals, as far as I understand.
In my opinion you might as well swallow the apple and get your EASA CPL, as sooner or later you will most likely have to do it.
You save nothing going to the USA for CPL / IR first. Depends what your plans are.
1500 hours is very hard to get, but with EASA CPL you have chance with some companies to get a first job as cadet.