First and foremost you should of course have a clear idea of the purpose of your yurt and know what a yurt is. What kind of use are you going to make of we going to make of it. It is very different to buy a small yurt for you backyard for you kids to play in, or a yurt to go camping with, from buying a yurt to use as an extra guestroom or to live permanently in, because many do exactly that.