5.3 swap 3rd gen
For the alternator, I have to assume that you are going with truck serp system to run the accessories. So, run the small body 4.3 V-6 ALT. It will bolt directly to the truck mounting location. I will however require a different belt (shorter).
One other item might be the Power Steering pump. My S10 required the smaller pulley to clear the steering box. The S-series and G body run the same front cradle. The F body may allow for the truck accessories to run without hitting the top of the steering box. Be sure to check prior to just dropping everything in. Mean Yellow Z/ RP Turbo on this board, is a good source to ask 3rd gen questions too.
This should get everything under a stock hood on your Camaro!

