I would personally just toss it. The tub will work fine. Then either save up for a premade PVC or HDPE cage like Animal Plastics, Pro-Line, Boaphile, Vision or anything like that or get a Melamine cage or make your own using Melamine if you want wood but I would opt for PVE or HDPE. I'm using a Pro-Line HDPE cage and its a ton lighter than wood and easier to clean. You can get a size for a ball python for pretty cheap, like around $200 since they don't need big cages. Ever since PVC cages came out, I just skip wood altogether.