I’m not an expert, but as far as hardware, just the bezel and mounting brackets for the screen are all you need. You might need some reprogramming to fit your exact car.
I sold my mustang with the Sync 3 upgrade, so I have the 2015 MyFordTouch system for sale. It's from a 2015 GT manual w/performance pack. Non-Navigation. Everything works great, and it's in excellent shape. No scratches on the screen. Everything in the pics is included - $100 shipped
Intake just tossed in the trash. I'd like to get rid of the rest of these parts. Local people, if you want the emblems, floor mats, or suspension, let's make a deal!
Honestly, this is why I sold my Mustang GT. It's a great car, but the rattles, ticks, and poor fitment drove me nuts. I can't imagine paying for a premium car and getting a Fiesta quality build.