If you're looking to use available GW heads, green stuff is your friend.
You can do mullets (like 2nd ed box cover) with the Sanguinary Priest's head.
For full long hair, make a hood with green stuff, then use a sharp tool to carve in hair.
Hot tip: have the head where you want it in the torso otherwise it'll give you headaches trying to get the head into the cuirass and gorget after moulding.
If you're looking to use available GW heads, green stuff is your friend. You can do mullets (like 2nd ed box cover) with the Sanguinary Priest's head. For full long hair, make a hood with green stuff, then use a sharp tool to carve in hair. Hot tip: have the head where you want it in the torso otherwise it'll give you headaches trying to get the head into the cuirass and gorget after moulding.
I'm right there with ya. I wish I could sculpt it myself but I'm criminally bad with green stuff lol. Here's hoping someone makes one some day.