You are exactly in the same position as myself. I have the same vehicle and picking up the same travel trailer today in Manteca CA. My RAV4 is 2011 2 WD and does have the tow prep package. Had them install: 7 pin plug, Brake controller, weight distribution hitch and anti-sway breaks. You mention in your post "axle flip" and "front stabilizing jacks". I'm now considering front stabilizing jacks too, but what is axle flip and why is that important?