I'm using a slightly different engine, but the approach would be similar. I'm running a Gen III engine out of a Yukon Denali. The accessory drives run on a surpentine belt system with the accessories mounted on aluminum brackets. I'm using the OEM brackets that will be powdercoated.

Other than LT1/LT4 engines with reverse cooling, check for OEM drives that you can pick up at a salvage yard for hardly any money. Powdercoat or chrome as necessary.

As mentioned, you can also buy brackets from various vendors and chrome or powdercoat as necessary.