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:
__________________
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.
I'd describe the supercharger and PS as materially less wrap than the V and vette pics you show, but that's just my opinion. What I know is the V setup is on 10's of thousands of cars and doesn't slip (until going huge overdrive maybe), can't say that about a new alternative unfortunately.