Choose wisely. Not all buses are created equal. Also, while you may find a smaller bus may not have enough space for your purposes, you may find a larger bus too much for you to handle as well. There's a lot of demolition and prep work to beginning a good-quality build that will serve you well.
But you also have to make sure you're choosing a good bus to begin with. If you like, I can throw a primer in the thread to help you understand what to look for and what to avoid if possible.
"Cheese Wagon" <email@example.com>
Former owner - 1989 Ford B700 64-pass Blue Bird (Rest In Peace, Cheese Wagon)