This big brake bracket kit allows you to install C6 Corvette ZR1 Monoblock calipers onto the front of your GM 1500 truck.
ctsvbrakeswap.com
Searching through C6 Corvette calipers it's a bit hard to tell which ones are specific to the ZR1 outside of the OEM blue caliper color, I'm just not familiar enough with them enough. ZR1 specific one's seem to be a bit harder to find?
All-in the parts list still comes in around $2,100 +/- w/ OEM rotors and pads, unless you stumble upon some used OEM ZR1 calipers for a good deal?
That also doesn't include any new brake lines, the caliper hardware kit, or ZR1 brake line banjo bolts referenced in the link.
Seems you're really not far from the price of a 16" Wilwood TX6R or TC6R front BBK w/ 2-piece rotors.