like stinky said...start small
im just about done with my first grow(about 3 weeks left) and there were MANY small issues that i never would have thought of in the beginning.
for my first grow, i simply wanted to get all the equipment and get the basic knowledge, so when i move in July, i can go balls out in the new crib
the thing is...i imagine small issues get exponentially larger when dealing with that many plants.
better to fuck up and trash a few plants then fuck up and trash 99 of 'em
my 2 pennies at least......good luck