This started as a tangent in Walt's interesting picture thread but really should be on its own.    For me,  the most important thing with regard to sorting a car is continuous driving and different conditions.    Making notes of issues,  hopefully you make home and can address.   1.  Cooling system is critical.   Nothing like stop light anxiety watching the temp gauge.   2.  Chassis lubrication,  Bijur, hand greased or otherwise.   3.  Fuel system.   What kind of fu