Wow these are some crazy numbers. I did it for much less.
I have a loaded SLT. The only thing it doesn't have is the Denali gauges with heads up display, HID headlights and the larger engine.
Denali grill is $340 on eBay, Aftermarket HID headlights for $130, bought factory chrome body side molding for $75 on eBay (not installed yet), bought fake chrome roof rack cover on eBay for $100 (the quality is not nearly as nice as factory but no one can tell). mine already had factory 22s but I swapped them for black factory ones. Sold my own rims so I only paid $400 for the black rims.
You could get replica Denali 22s for $1000. I sold my factory 22s on Craigslist for $600. I bought black factory 22s for $1000.
Anyway you get the idea. It's possible to do it for much less than what the package cost.
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