First off, a big THANK YOU to FatGuy and Unbroken for the video and the tips. Installed Steeda springs today and things went smoothly thanks to you guys.
Did the fronts the way I normally do. I guessed that the preload wasn't too bad so did not use spring compressors to disassemble the struts and just loosen the top nut with the impact wrench after wrapping in a blanket. It jumped only about 6" or so. Obviously don't do it this way if you aren't comfortable with it or how to avoid injury. I was hoping the lowering springs were short enough that I could assemble to strut without the compressors, but the Steeda's definitely are not.
The rears, I did it as Unbroken suggested. I've never done a car with the rear suspension like this Ford's so I appreciate Unbroken sharing his way--the Steeda instructions talk about dropping the rear subframe but are not very detailed in how to do it. I think it is best to do the rears in this order after backend is on jackstands: Detach swar bar end link on both sides and rotate sway bar out of the way. Remove shock entirely (upper bolts then lower). Jack up the knuckle from the lower shock attachment (mainly because the UCA want so sit up higher). Remove the long bolt that joins the knuckle to the upper control bolt. The knuckle should drop low quite readily after the jack is released. I then used a cheapie but stout Harbor Freight 30" pry bar to work the bottom of the OEM spring out. Once the spring is almost out, a pair of large angled pliers finished the job. The Steeda springs went in quite easily with just some light leverage on the lower spring perch. Then just reinstall everything in reverse. If you do not not jack the knuckle (so the hole approximates the UCA hole) and insert the knuckle-UCA bolt next, it will be extremely difficult to insert it. Then lower the knuckle and reinsert and tighten the shock. When both sides are done, secure both sway bar endlinks. The rears took about an hour while the fronts took me 2 hours.