The southern-most exit posted is Exit 5 (Route H/ Pineville). There are numbered exits posted to just north of Carthage, resuming again at Archie but ending at Three Trails Crossing.
There is an (unfinished) End 49 sign just past Three Trails, but mileposts continue to Bannister Rd.
There is a possible signing error at 71/96 at Carthage. It appears the I-49 sign will have a "Straight Ahead" arrow rather than a left turn arrow on WB 96. I hope to investigate further sometime this week.
There is no exit assembly yet, but the mile marker for NB 71 at Bus 71/Rt K /"To West 54" at Nevada is MM 101.0 at the ramp.
I will have photos on Flickr either next weekend or sometime next week. I have "drive-by" photos of nearly every exit and close-ups of a few.