A Civil War wall

Since I know others here are better at math than I am, I will pose this question. If the United States government decided to build a memorial to those killed in the Civil War similar to the Wall built for those killed in Vietnam, how big would that wall be?

Would it fit on the National Mall assuming the same typeface was used?

Answering my own question, I estimated the wall would be 4223 feet long or about 8/10 of a mile long.