L76 G8 high mount alternator bracket-which one do I need?

[blazincopper]

I am putting a L76 6.0L engine out of a 2009 pontiac G8 into my 67 Camaro. I need a bracket to relocate the alternator to the upper passenger side. From what I can tell, my pulley setup is the same as the LS3 08 and up Corvette setup. Is this correct? If so, is it better to use a stock vette bracket or an aftermarket one.

Thanks in advance