It is not easy, 98% of my projects fail lol, i try everyday to make a texture and more than 14 hours a day and most of them wont even see the light of rendering( lol) 

For this i had the best photos ever, i did not need to edit them regarding baked in highlights and all. 

ALthough i texture in the now unavailable deep paint 3d. The technique i use can also be adopted to Zbrush projection, only zbrush texturing is of lesser quality. But it is doable.