The shop had an update at the end of the day.
The pulled the spark plugs, and turned the motor. They said some water came out, but the motor spun smoothly with no clanking sounds indicating no severe damage yet. Tomorrow they're going to drain the gas tank, put in some good fuel, and see if it will turn over.
If it runs and they think the major drivetrain components are all ok, we'll get a list from them of all the electronics that will need to be replaced. They'll let us supply any parts we can get for less the dealer cost

.
They felt the body work on the car was minor and not a big deal in the grand scheme of things. The body damage amounted to the front nose hitting the small berm/ramp, and a bunch of shallow scratches from going under the chain link fence.
Right now, I'm just hoping for a sound drivetrain. With that, the car will have
some residual value if it were to be parted out or sold whole to someone willing to take on the project or parts. Ideally, I'd just love to be able to get the car together and running again, even if it will be listed here as a U-boat.
Thanks again for all the kind responses.