A.C. pulley, and balancer need help!

[snappytravis]

I have a 69 camaro with ls3, I purchased the vintage air ac a while back and I am now to the point of installing it. The factory style ls3 balancer has a serpentine setup to run the a.c. compressor. It is a sanden sd5 with two grooved v belt pulley. I haven't purchased a balancer yet. Should I try to buy a balancer and use ls1 or ls2 brackets for ac? I am thinking I may need to buy different clutch for sd5 compressor or completly different compressor? I would appreciate some your advice on balancer, ac bracket, also
Thanks for the help