For a Chaos Dreadnought I plan to build, i want a skull like this Thottbot World of Warcraft: Deathcharger's Reins on the front. Would this be easy enough for a 1st timer? or is there anything already like it out for sale?

i need the actual skull (horns not included) to take up the entire sarcophagus part in the middle, with the horns coming up over the top of the dreadnought.