Looked in the forum and couldn't find a thread started for the N-Line.
Yesterday I installed the Universal Rally Armor on my Kona; I reached Rally Armor and the 2021 kit won't fit the 2022, so they haven't design the kit for this model.
Looking at what hardware they used, I used that as inspiration to find some similar hardware at the store.
Here is what I used, starting at the rear which is the complicated side ( Adjustable pre-drilled bracket, x2 M5 bolts, washers and nuts for each mudflap, stock side screws and stock bottom crew clip). I had to drill a bigger hole on the bracket to be able to fit the screw clip at the bottom.
Distance rear: 4.5" from ground to bottom of mud flap
The front side was easier, Just use the stock screws and screw clip:
Distance front: 4" from ground to bottom of mud flap
Don't drill circle holes, make oval shapes as they mudflaps will need to be adjusted (Please look closely to the drilled holes on the mud flaps)