seen the svt used runnign for around 2500, I bought mine (regular zetec) for 1100.
If you want big power from it, water injection will help get you there.
You've already got svt headers.
Get an offroad pipe, adjustable cam gears, and 3" exhaust
That stuff should get you some good power
Your engine will breath easier due to the charger and should run better than it did before the FI (mine runs much better now)