Getting your EASA single engine privilages reinstated, and then converting it to an FAA Private Pilot Certificate shoul be the easiest way. The conversion process isn't difficult at all. Just plan for it to take upto two months for the required paperwork to travel back an forth between the U.S. And you EASA country. Once you arrive in the states, you'll meet with an examiner to finish the paperwork so your temporary FAA certificate can be issued to you. Finally you need to complete a flight review with a flight instructor to "activate" your PIC privilages. Let me know if you need any help, i own a flight training company in central Florida.