Help with replacing hair

[base]

Hi all. I made a topic on this awhile ago but couldn't find it so sorry for making a new topic about it. A while back I tried replacing attitude era undertakers hair with the purple gloved takers hair and when I did the hair model just completely disappeared lol. Attitude era taker just had short hair after I did it I followed the tutorial but I guess I didn't do it right. But I can't seem to get it down right. So maybe somebody could help me? Maybe somebody could do it for me? I'd really appreciate it.

[base]

I'd appreciate a little help. Do I replace every single part of hair in the texture too. I know in takers texture file there's a couple parts for his hair. I'd really appreciate the help.

[El Guapo]

This topic by Miztah Raza should help: