Just read up on other builds, why people bought what they did, floor plans, problems they ran into, how they adapted and overcame issues, and what they learned, you will be way ahead of most of us lug-heads (me included).
As far as a drum set? Now THAT is a challenge! Sounds like an awning and portable deck are in order.......
Firearms stand next in importance to the Constitution itself. They are the American people’s liberty teeth and keystone under independence. — George Washington