these are pretty nice and at a reasonable price
https://www.llbean.com/llb/shop/506578?originalProduct=120891&productId=1685653&attrValue_0=Loden&pla1=0&qs=3158908&msclkid=b2f148232cc51887023a2d9571fc81e4&
sorry,no pictures .Its dead simple .I have A S. O. 10' X 10' with a pocket for a center pole.
I pitch the tarp taking terrain and expected weather into account and put the nest under it