I think I know how it feels. I once decided to take a winter trip on Okanogan connector. What I did not know at the time is they use fist sized gravel for traction. So, naturally, at some point a semi decides to pass me through an unploughed median doing 120. My entire front and side got heavily pitted and I couldn't even look at the car that day. But it wasn't even because of the pitting, it was because now the car was... tainted.
I think it's a similar situation. Once you get past the negativity imposed on your by the clowns at the dealership, the car might need a few fixes (and I hope dealership will be paying for them), but either way, clutch and head unit is not the end of the world. This car is objectively pretty damn sturdy (unless you stage 10 bigturbo ehthanol nox it) and if the engine sounds good, doesn't leak, doesn't have any rust, etc, you got a diamond in the rough on your hands. Even if you need to pay for the clutch job, I think there's a reason why there's zero second hand FiSTs on sale right now in the area on Autotrader, haha.
I would get another shop to do an inspection either way, just to make sure there are no other obvious gremlins (and if there are, then Coastal Ford needs to be promptly made aware of them).
Anyway, I'm going to shut up, but chin up and I hope you and the car get through this