Go big or go home - lol. You will spend same or more for mach 1 and get less. Not worth it. You won't find used and if you do, it will be $$. New is over $2,800 from ford
All I know is that it feels sluggish to me after some time, especially not getting on it. I've done two battery resets and each time after that the throttle response is insane and the car just pulls. After a while, it goes back to same old slugfest.
I personally feel that track mode is more responsive and it does "learn". To unlearn, resetting the car battery does the trick until it does it again in 2-3 weeks.