Just a few facts.

SNA is about 5700 Feet long. Runway 19R
Weight max is 152K pounds

Airforce 1 is a 747-200B
Going to guess the weight at around 700K pounds
loaded at T/O.
Max on the spec is 800K pounds.
It wants 10K feet. I think the 747-200 min spec is 6500
But the Presidents is a bit on the heavy side.

If you do see a 747 on approach over the 405.
Avoid the golfcourse and the toll road.
Its going to get ugly back there.