Juveniles look pretty amazing. The adults not so much to me. They get huge as adults, up to 24" and 10+ pounds. May not be a good choice for most aquarium hobbyists.
Juvenile:
They are available but they are a custom order. Your looking in the ballpark of $150 ish to custom order one in. IMO not worth it. I would get some of the smaller species of bat fish if that's the kind of fish you want.
like the platax pinnatus this fish is much easier to get.