5 feet x 12 inches = 60 inches. You want every thing in the the same units. Scale only the body, do not scale in the x, y, or z separatly. To help the Illunsion, if you scale the body up, scale head down one or two percent, if you scale the body down, scale the head up. (67/71)*100=94.4% When conforming clothes, after the clothes are comformed, use the same scale on the body of the clothes.