I am just starting Sunshine Models' Kit #52.13 for the Texas & Pacific 50000 series double-sheathed box car. The Prototype Data Sheet states that these cars were painted boxcar red with a "brown tone". Is Floquil Southern Freight Car Brown an acceptable color? Is there a better choice/mix. Also, was the underframe painted the same color? And...where the trucks painted the same color? I modeling circa 1939 if that makes a difference.