No need for those chemicals at all and no need to soak. If his humidity is 70~80 with good ventilation, that's more than high enough for him to shed very well without assistance.
I'd follow the temperatures on this caresheet to a T and give him many places to hide completely. A good hide means the snake is not visible at all, until he decides to come out. http://ball-pythons.net/forums/showt...ius)-Caresheet