Most of the smaller species you'll see for sale are dangerously venomous, like the Fattails, and Deathstalkers. Bark scorpions are also small, not as deadly, but still have a nasty sting.
Too much care lol? Scorps are require about the least maintenance of any animal. You should get a Flat Rock scorpion. You put it in a box and feed it twice a year, that's about it
A flat rock is the longest scorp, but they're mostly tail, especially the males. An emperor is much more bulky, and active, and needs a much bigger tank than a FR.
I've never heard of a prepared food for scorps...but anythings possible.