Is that 76 feet? If not, fuggadabout it.
Stand up and hold your arms as wide as you can. That's how much space a 6 foot plant eats up.
Now imagine 15 people all standing there with arms spread and no one touches another. You
are talking more space than a two-car garage.
Why don't you try to grow one 6 foot plant first. Walk before you run, son.
BigSteve, another know-it-all OG.