Rear Bumper replacement

So someone backed into my N in a parking lot at night and drove off. Came out to the car and there was a hole and a crack on the passenger side corner. I actually found a used bumper on eBay but now I'm looking to install it and before I try puling it apart with my low knowledge hands I tried watching some YouTube videos. Unfortunately, the only videos I can find are for the last generation Veloster. Does anyone know how much difference there would be? There is already the difference because we have the separate lower valence attached to the bumper which will have to be disassembled and attached to the replacement bumper. I just don't want to get too involved with this and then get stuck without any reference. Thoughts...recommendations?