It is rather competitive out there at the moment so I would think you need a JAR license to work in Europe (and a work permit).
By the way, I have done both the JAR CPL/IR and FAA ATPL flight tests and did not think the flight tests were harder over in Europe, even if they LOVE to think so over here.
But..... the JAR ATPL theory just never ends. Count on a year full time.
Don't know how the standard of the TRs compare though.
The FAA should be able to tell you where you can use an FAA license. Have you considred south America? I think you can do an easy conversion down there in most countries from an FAA license.
Otherwise I am pretty sure an FAA license should work on any N registered aircraft, regardless of where it is.
Who knows what will happen next year, but your best chance is probably to be up and running with you type rating (and line hours if you plan to go down that route) by spring next year when the season kicks off again.