Also, on a side note south of the former NC-66 interchange.
SprSt -> 108 or 108A (would need updated in US-311 & NC-8 too)
WauSt -> 108A or 108A_A (would need updated in US-311 & NC-8 too)
NOTE: those are the best solutions I can think of for this interesting quirk due to the split interchange ramps.
As for these two closed interchanges, since they did have #'ing posted before they were closed, I think it's safe to convert them as well instead of using the name of the road for the closed interchange.
*StaDr ->
*108C (would need updated in US-311 & NC-8 too)
*4thSt ->
*110A (would need updated in US-311 & NC-8 too)