TBH, you'd probably benefit from replacing the nut anyway as the kit nuts are plastic. A bone, graphtech or even synthetic bone will be a big improvement.
If you choose to use the kit nut, after you've flipped it be sure to check that the string slots aren't sloped the wrong way (I can't tell from the photos). If they are sloped toward the fretboard (instead of toward the headstock) they will need to be filed appropriately. However, there may not be enough material after filing the slots to provide clearance for the strings at the first fret.
You may be fine with the kit nut, but some things to be aware of.