My last Ball hatchling grew from 14" to 23" in 2 months. I would have gone with a used $20 Glass terrarium myself.. That guy will sell you anything, thats how he makes money. From now on read what people say that are like yourself, not a sales pitch.
You can put a hatchling in there but that isnt enough room for Cricket hahahaha. The snake will push everything all over.
What you need before a Snake Period is a Dimmer on that UTH. You have to get the Basking spot down to 88-91 or you'll kill the snake. If you cant afford a Tstat get a Dimmer at lowes for $15.
https://m.lowes.com/pd/Lutron-Creden...Dimmer/4462387