40s,
Your question has been asked at least 10 times in the thread, answered around 5 times, and discussed in depth at least once very recently. If you read the thread you'll find the answers to that question plus every other question you might have regarding BsAs.
Besides, the answer depends on what you want to do in BsAs, where and how you want to live, and where and what you want to eat, so you're asking a bit much when you just want people to list random expenses. Instead you could tell us what exactly you plan on doing, and then a helpful soul might come along and answer. But before you do that, you should really read the thread.
De nada