I would defiantly regear with 35's, a lift, and a supercharger. But 2000k is about twice what it should be, I got 4.10s put in my truck for 750 parts and labor.
Also if you don't have a custom tune, you are defiantly going to need one...
06 F-150 XLT SCab 5.4 FFV 4.10s/ Straight Piped
17" American Racing Victor Teflon/ Black Halo Proj. HL
3" Front Level, 2" add-a-leafs/Bull Bar/Edge Evo(boo)
35 x 12.5 x 17 Toyo Open Country M/Ts wore out, pitt- bulls coming soon- Rock lights