called the dealer, they wanted $9xx.xx (i was so flabbergasted, i missed a few digits in the price, but it had plenty of digits in it..)
that was fuel injection cleaning (~$237?) and all 8 plugs.
thanks to jRomeo, found this link:
Sparkplug Change for 2004-2008 5.4 3V-Step by Step - F150online Forums
does anyone have a tool locally I can borrow, just in case?
found these on Zac's recommendation:
Ford 5.4 Triton Autolite HT15 High Thread Spark Plug SET(8 EIGHT
Set of 8 GENUINE Motorcraft DG-511 Ignition Coils 3L3Z-12029-BA
a Lot of guys are running these,
Ebay cheapo's Price: US $87.95
"ain't nobody go time for dat"
fix it once...fix it right, get on with your life
the plugs are steep at the local parts store...
Autolite Revolution High Thread Spark Plug $12.09