My Dry the thing out and display it as-is. The whole mystique of the last 50 years was " I wonder what its going to look like". Well.....now we know. The attraction now is to see the retrieved 57 Plymouth. I personally would not find any interest in viewing a "now restored 57 Plymouth that was buried for 50 years". 90% would not believe its the same car anyway. Let the history of the buried 57 continue run its course.
Dry the thing out and display it as-is. The whole mystique of the last 50 years was " I wonder what its going to look like". Well.....now we know. 
The attraction now is to see the retrieved 57 Plymouth. I personally would not find any interest in viewing a "now restored 57 Plymouth that was buried for 50 years". 90% would not believe its the same car anyway. 
Let the history of the buried 57 continue run its course.
