Many of us, including myself, have wondered and or asked for a parts list and cost...
I have compiled a preliminary parts list and ball park cost for my vehicle (2015 Suburban LTZ) should I decide to go for this mod...for those in the know - please feel free to offer corrections.
$350 - Denali Cluster, new [23249954]
$200 - HUD [ 23474646]
$59 - HUD Switch assembly 23193705]
$105 - Cluster Visor (with opening to accommodate HUD) [23181840]
$300 - I/P Harness - perhaps more $$
$120 - Left Air Outlet assembly (to accommodate switches)
$533 - Windshield - HUD Compatible
$300 - Programming - have no idea how close or far off I would be with this number
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adding tax and shipping on parts, brings the $$ close to $1,600 or more
add a HUD compatible windshield - the cost is now roughly $2100
The only caveats are cluster has red lighting instead of blue and the brushed aluminum accent trim on the Left Ari Outlet would not be a perfect match.