The thing is that there will always be neck seams with the Beast races. There is actually a matching body texture (you'll find it if you look up Coverkhajiits), but it isn't compatible with the newest versions of CBBE/UNP/Insert-female-body-mod-here or Better Males. The Coverkhajiits mod will have the same issue as using the Xenius' face textures for Argonians (more obvious neck seam). It's the only good Khajiit face texture mod out there as far as I know (and believe me, I've spent a long time looking nobody cares much for the Beast races). The diffuse (color) map is more detailed than the vanilla texture so it looks odd with a body texture that isn't as detailed.Īs for Khajiit, the only one I can recommend is CoverKhajiits by mrLenski.
Personally, I just use the normal maps from Xenius' mod.
Don't use the body or hand textures because they are not compatible with CBBE (they are meant for the vanilla body only). If you don't mind a more obvious than usual seam, you can use the facial textures (diffuse, normal, and specular maps) from the Better Beast Races mod by Xenius. You're better off sticking with Vanilla in that case.
Unfortunately, I don't know of any Argonian face textures.