You don’t need to change the cams in newer engines with variable valve timing. The Tacoma goes from Otto to Atkinson by adjusting the intake valve timing. Whether the 2.5 has VVT or not, I don’t know. I assume most modern engines do.
Team Ford in Las Vegas had a first edition in Area 51 delivered someone backed out of. I was going to look at it just to see one in person, but it sold.
Should not be an issue. Remember, fx4 is awd/2.0 only which is not flat towable. The hybrid is the only flat towable, and none will have tow hook provisions.