i'd go 02 RCSB GMC 2wd.
denali front end. 4/6 drop with the 5-link independent rear from a tahoe. paint would be jetstream blue over cyber gray 2-tone. dual scoop ram-air hood. same smoked LED lights as i have now. shaved roll pan & tailgate handle. fiberglass tonneau.
custom leather seats - charcoal gray with blue inserts & stitching. gray suede headliner & door panels. gray carpet & dash. gray shift boot with blue stitching in a tahoe console.
LS9 minus S/C intake - i'll use the LS3 intake with a couple front-mount hair dryers mated to a richmond 6spd (not sure of gear ratios i want yet). full titanium exahust - manifolds, 3" downpipes, high-flow cats, H-pipe, 3" mid pipes, magnaflow mufflers, & turn-downs.
285/45r20 & 335/40r20 eagle f1s. 15.5"/15" carbon ceramic brakes - 6 piston front, 4 piston rear. True Trac locker (ratio depends on the trans gearing i end up with).
i guess that's a start...