https://asld.secure.force.com/recreationalpermit/. A "family" permit is a better option if there is more than one person traveling. Otherwise EACH PERSON needs a permit.

No, you have to purchase it here and print it out (any place in town like Staples can do that) https://asld.secure.force.com/recreationalpermit/

Go online and pay for the permit. It’s $16. Not sure what you mean by “on site”? It’s an open field for miles and there is never a host on State Trust Land or BLM Land.