Had the same problems when we bought our 2012 Lexi 283ts. You have to remember, Ford aligns the front end when it's just a cut-away, and the alignment is probably ok then. But FR adds 5 tons of weight and bingo, alignment stinks.
Added the adjustable bushings with the alignment specs posted. Roadmaster Reflex Steering Stabilizer, Sumo front springs, SSF-106-47, which replace the bump stops. 70 psi front, 70 psi rear, 70 psi airbags. Rides beautifully, one handed steering, no wander, no play. Not a sports car, but it dosen't wander all over the road now, and passing big rigs are no problem.