You can infer that they had a very strong economy because they did not need to expand their own economy. They stole from others.
He ordered barley because barley is used in producing beer and whisky and he wanted to drink alcohol because he liked it. He therefore changed one of the commandments from no animals shall drink to no animals shall drink to excess because it suits his needs. It's just one of the many commandments that he changed.
They are fearful about "runaway" conventions making unwanted changes.
The process of constitution change is a political process and therefore there is always a risk of run away conventions coming up with unwanted and sometimes undesirable changes.
1. Ratification is termed as the action of signing and validating a treaty or agreement. Ratification is the most important question people have to decide because people are selecting whether to approve a government that will protect their liberties or will overturn them.
2. Brutus is concerned with the power to tax clause of the new government.
3. He believed that a large republic could lead to tyranny because he believed that large republics do not work properly. The representatives a republic must know the wishes of their voters , which was a very tough job in a large republic. In order for a republic to work properly, its people must follow the laws voluntarily but ensuing laws will become a chaos in a large republic.