Need opinions. I'm trying to switch from keeping in tanks to a rack system. So is it good to use a sterilite 3 drawer wide storage cart as a snake rack. Am using reptile carpet as a substrate. And put a few tiny holes around outside of each drawer. Have modified it to use mini undertank heaters and give the cords room to slide in and out. So what I want to know is.... Is that good enough to keep heat and humidity in. Don't think I'm going to need any overhead heat lamps since I never seen any on anybody else's real snake racks.