It's best to put it out to friends and such that you're interested in finding some nice ________ crystals for you home. More than likely, someone will have a friend who's a "rock hound," who can direct you to a good place to look. Yes, ideally, go and pick out your own stones. Use your rods while you're ether asking "Which is the best crystal for ___________ situation."
Now if you have a friend who regularly goes to the big show down in Tucson, they can steer you to the best prices, on the best stones.
Yes, activate it on the lowest level.
Much Love, Shawn