When did you order that? We ordered a couple last year and he didn't offer that so maybe he no longer does? I dunno. Regardless the only thing you will need to purchase separately is a good thermostat. If you want to breed bigger is not better....makes it very difficult to control temps when you have a large enclosure. Like KMG said 24" is plenty of room. They are chondros....they stay in one spot the majority of the time. Males will cruise at night but females stay put. They do not need a huge enclosure.....similar to the misconceptions people think ball pythons need large tubs. Not such the case.