pacificdomes.com/greenhouse-domes/
Back iin 1980 Pacific Domes was Oregon Domes' nearest competitor. I see they're in Ashland now, then it was Cottage Grove along with Pacific Yurts.
https://www.yurts.com I see they are still in Cottage Grove today. Pacific Domes is call for prices.
Anyways, see the concrete block foundation wall? Sad.
nautil.us/the-ancient-architecture-that-defies-earthquakes-301285/
They're using cedar beams and big rocks, but it would scale down to 2x4s and fist-sized rocks. No mortar.