2006 CHRYSLER CROSSFIRE Engine Problems

I WAS DRIVING THE CROSSFIRE ONE EVENING AND IT SHUT OFF IN THE MIDDLE OF THE STREET, I ALMOST GOT REAR ENDED. ALL OF A SUDDEN THE ENGINE SHUT OFF, THE EXTERIOR AND INTERIOR LIGHTS WENT OFF AS WELL. THE CAR ROLLED TO A STOP BLOCKING ALL THE TRAFFIC BEHIND ME. I TRIED TO RESTART THE ENGINE AND NOTHING HAPPENED, I HAD TO HAVE THE CAR JUMP STARTED, WHICH TOOK SEVERAL ATTEMPTS. I HAD NO PROBLEMS OR INDICATIONS THAT ANYTHING WAS WRONG TILL THIS HAPPENED. MECHANICS HAVE PUT IN A NEW BATTERY, A CRANK POSITION SENSOR, AND A CAM POSITION SENSOR ON THE CAR. IT STARTED ONCE AFTER THAT, RAN FOR A FEW MINUTES THEN STOPPED. AFTER THAT IT WON'T START, EVEN WHEN BEING JUMPED. TRYING TO GET A ECM FROM THE DEALER. DEALER SAID THE COST IS $2,700.00, AND ORDERS ARE PENDING UNTIL JULY 1, 2019 BECAUSE OF SUPPLIER...