I tried calling Performance Accessories several times and every time they forwarded me to a guy who wasnt there. Anyways, I emailed them to find out some info on a release of a 3" Body Lift for the 4.6L. Heres what he replied:

"Kason, We do not yet maket a kit for your application, as you are aware.
There are numerous kits scheduled for release within the next several
months. Periodically check our website for new releases.
Thank you for your interest in Performance Automotive Group.

Dale"

Not exactly the details or an actual release date I was hoping for but it helps a little and I thought Id share it in case anyone is interested.