There's a million things people enjoy doing that aren't practical just to see if it can be done.
I don't know if Anthony wants a artificial trout stream just to see if it's possible, or if he just wants trout, sure trout are cheap and buying them is the practical way to go, but trying to do the unusual can be rewarding if you succeed, you just have to be prepared to accept the costs if you fail.
First things first, get your pond built, buy some trout, and see if they will survive the summer heat.
