I asked before about making a bald hairstyle and posted an image of how it looks from the back which was a problem. I know it's bad to look at but that's not the problem. I'm trying to put a tattoo on the back of the head, the head texture merges towards that side because hair covers it so normally there's no problem. When I draw the tattoo in converges and looks all messed up.

I looked into how hair assets work and I found the mesh and a tri file(not sure what this is). My plan was to edit the MaleRedguardhair01 which is the shaven hair and then clear it up, add the tattoo but there was no texture that I could find. This is for a follower mod I'm making.

Anyone know how I could go about doing this?