Well...... you are on a public gun forum

You can well bet that someone from the Govt is reading the forum.....

Maybe not so off the books as you would like

Face to face sales are still legal

I check drivers licensce. If the person is even a bit fidgety, I dont make the sale.......Its not a fool proof method, but I have seen some "fidgety folks.........

On the price, up to you. I would say check the firearm, take it apart and it it looks ok, offer a price that you feel is fair

But ..... the new deals are very aggresssive