Black wing-tips polished to Marines specifications would be fine.

IMHO the ban on white hose and tartan flashes seem to be based on not wanting to look like a rent-a-kilt wearer. Many business renting kilts find it easier to let you have any color kilt hose you want as long as they are white. The same for flashes, tartan flashes in the same tartan as the kilt are easy for rental places to supply.

If you read enough of the back threads you will see the hose color and flash style goes back and forth every couple of years. What combination of hose colors and flash style makes you feel you look your best? Or, if you are like me, which combination makes you look your best in the eyes of your wife?

This is clothing and not a uniform, yes there are some standards of dress but these should work within you personal sense of style.