I really don't like any of the options but I have to go with #1.
I have to buy 3 passes just to camp with tow rig, Jeep and wife's car so she can get to camp after work. My complaint is that we have other rigs we use to use instead of the normal ones at times before the Discover Pass was required. One Pass for $30 transferable between 2 vehicles would give us the option of taking the CJ5 instead of my XJ and my wife's wheeler instead of daily driver.
I would like to see the pass not have any plate numbers on them like a NW Forest Pass.