I really need to get started on a hatchling rack for say 40 to 50 snakes. Space is becoming a premium so I would like to find something smaller than a a shoe box and larger than a deli. This size should be large enough for nearly the first year for average growth rate snakes. I'm about to go with Jeff Mohr's design using Rubbermaid Take Along sandwich size container. They are not perfect, but the price is about right. Any suggestions?