you have the makings for multiple oz a plant, big pots, strong light, and soil sounds good, hope not to much on the chook shit, dont want the soil mix to hot for autos, they are very sensitive in the first 2 weeks in particular.
this being said having the makings of multi oz's doesnt always work that way, especially in the first few auto grows, my fingers are crossed you reach the potential of your set up first grow. I am subbed and will be keeping an eye on the grow.
my best advice from here is keep it as simple as possible, the more you complicate it the greater the chance of something going wrong and in many cases one thing wrong and you wont hit multi oz's, this is why you should always have the attitude of a learning grow,if you get oz's great, if not then the lessons learned will help maximise future grows