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.
I sold my car, so here are some of the parts that I took off. Everything is in great condition. If you need more info/pics, let me know. I'm in the north Chicago suburbs, local pick up is always welcome. Most of these parts were used for under 6 months.
OEM chrome badges - Horse, 5.0, and...
Just some guesses from me...
Digital dash - $2K
Sync 3 - $1500
Leather seats - doable, but hard to find OEM seats. Could go with a cover, maybe $700ish. Headed seats using the OEM buttons, probably expensive and not really worth it.
Active exhaust - Not sure if this is possible. Better off...
It's a common misconception that the paint comes from the factory in perfect condition. This should easily clean up in the hands of a capable detailer. Get it polished, then put a good ceramic coat on there (or clear film if you want a higher level of protection)