Well that all depends. Are you getting a baby or an adult? It's actually best to keep young ones in smaller, heavily planted tanks. In big setups they can get spooked and break their backs/noses.
I've never caught one before but will definably keep my eye out this summer and try different fishing places. I also remember there was another place where you could buy North American fish but I can't recall the website...
I knew about them being able to break their backs, but do you think if this pond was heavily planted around the edges, it would be safe? I don't have a large enough aquarium for it to grow up in, if I got a baby.