I got my brackets from lsbrackets.com, and bought the accessories seperately:
http://lsbrackets.com/. I used the truck accessory brackets here:
http://lsbrackets.com/ls-trucksuv-al...umber-ls-0203/ and the pics of the engine with the air cleaner are of mine. Pretty easy guy to work with, and very responsive to e-mails.
Another options is that Pace Performance sells a bunch of different complete LS Accessory Drive kits for LS engines:
http://paceperformance.com/c-142691-...rive-kits.html