3. What did Quixote say he wanted to go find for himself because another knight
from one of his stories had gotten one of these and it was great?

well stockyards mean a large yard containing pens and sheds, typically adjacent to a slaughterhouse, in which livestock is kept and sorted. and i'm assuming that by party you   mean a large group of people which does make sense because chicago is a very crowded place much like new york. stockyards tend to take up a lot of room due to needing the area for pens to keep animals in and the fact that stockyards are usually right by slaughterhouse where they process and distribute the product. so its much like a zoo but with some dead animal products close by.

is it multiple

we need more information in order to answer.

in my opinion i think it was not excessive at all. the maids turned against the queen in his absence, how could he ever trust them again? if he let them go they would surely spread the news of the suitor's deaths, which is much too risky. as for the suitors, they were selfish, rude, and greedy. the god's had apparently marked them for death, meaning odysseus made their death come faster.