Crickets are a no go in my house they are so annoying lol.
You should definately try some dubia roaches! They dont smell at all and they dont make any noise its great!

and yea the list looks good.

But to save some money, if you were only going to buy a rheostat, I would recommend getting a dimmer from home depot. If you know even the very basics of wiring then you can wire one up for $5 instead of spending $30 for a rheostat which is the exact same thing. Or just get a lamp dimmer from home depot which will run a little less than $15 and you dont have to wire anything. But I wire up all my own on anything I need dimmers on, it takes 5 min at the max to wire