This is great. Note, if you want to remove the remaining 3D rendered people from the Nordschleife after installing this then change "15.kn5" to "15.kn5.off" in "assettocorsa\content\tracks\ks_nordschleife".
After seeing Nordschliefe without the added spectator textures, I realized that it looked as if there had been a litter clean-up across the entire track. The 3d people and various track-side objects look as intended now. Now it is obvious the added 2d spectators fouled the intended visual design of the track. It is truly beautiful now.