This beast was supposed to be part of the planned Series 4 release of action figures as a box set. Rumour has it, it was supposed to be packaged with a Kirsty Cotton figure. Luckily before the line died, the sculptor released this awesome wax sculpt of the proposed action figure. The Engineer is one of the coolest creatures from the first Hellraiser movie. It's whole existence is shrouded in mystery and doesn't really resemble the Engineer from Barker's Hellbound Heart novela.
The Engineer as seen in Hellraiser
Maybe some day NECA will release the remaining Hellraiser characters and we'll finally see the Engineer on toys shelves.