What size wood yurt are you thinking of? I am sure if you do it yourself you ca.n do it for from half to 2/3rds of that $ 30,000.
Check out a book named Stoneview by Rob Roy, for ideas. I have considered a 25' +, with a 15' one adjoining for a shop.
Mine would be a frame like his, but instead of cordwood or stone be thicker 8' sections of conventional wall sections as Rob lays out. And with a tono,
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Look at a lot of different ways to do it. Do you have your site?
You can find the book Stoneview on Amazon. Its by Rob Roy.