Life size mannequin

I would like a life size mannequin in the correct proportions for a Star Wars Jawa that can be printed. The mannequin would need to be posed to hold a gun and must break down like a shop mannequin so that the arms are removable and the torso separates at the waist from the legs. A 3D file for the gun can be supplied to the correct dimensions for posing, no detail is required other than basic musculature and basic facial features. The proportions are to match Jack Purvis (actor who played the chief Jawa) Jack had dwarfism and was 1.24m (4'1") tall. Files attached show proportions and pose.