I took a Neca Ultimate Halloween Ends Figure

Repainted the coveralls a charcoal grey, then tried the match the weathering, the dirt and the mold to the screen-used suit from behind the scenes photos

Repainted the Headsculpt using the Hero mask photos.

Finally, Tried my best to repaint the knife to Match the screen-used rusty knife as seen in the cave. Left the hands stock as they seemed great on their own

It ain't the most accurate out there but I did my best :) Thank you for looking!