MegF.
That's for sale???
I suggest getting the Cornsnake Manual by Kathy Love and reading it thru. You can also go all thru this forum and read postings. Most of the questions you have are answered somewhere on here. I would also suggest that if you want to save money on purchasing a snake that you try a reptile show, or a local breeder. I've purchased snakes from both places and have been very lucky with them. However, that having been said, you also take your chances especially at reptile shows. You never know what you're going to get unless it happens to be from someone who's well-known such as the Love's or Rich Z or some others. Keep in mind that many people are at the shows selling suplus snakes off, and some might not have a feeding history. Do a little research and then buy your future pet. They are great pets! They still are a big responsibility.