I found an alternative, since I already have the Vette alt & PS bracket & am using the Holley high mount AC setup that I want to keep. I found a setup from LSXConcepts that may work for me.
It looks like:
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Scot
86 Monte SS
LS2/T56 Magnum
That was also posted on the LS1 tech thread looking for solutions. Looks like a cost effective setup, however I wouldn't run it as it doesn't have enough belt wrap for me to be confident, especially if you pulley down.