Here's the cheapest and quickest rack you can build. Just use Tupperware containers with a row of holes drilled in the sides (for ventilation) and stack them on wire shelving. I actually bought a collection of snakes and didn't have the room and used Tupperware on wire racks for a few weeks. I ordered an ARS rack to hold them but used this short term. Would probably work well for hatchlings assuming you just need space to hold them until they sell or you ship them off to a wholesaler. It's probably best to crank the room temp up to about 85F to 88F so you don't need a hotspot. I took this snapshot off of a Snakebytes video from an old BHB episode, that's where I got the idea. Once I got my permanent rack I used the totes to organize my garage LOL.