Drove all the posts for the other half of the hoophouse today, assembled all of the bows. Probably put plastic on the bows tomorrow. For scale, notice the guy standing next to the red ladder in the center distance.
Here's an example of the wrapping done on every joint to ensure that the plastic only touches smooth surfaces. I want this plastic to last for the full rated 4 years.
The finished rail design, from the inside of the hoophouse. The top and bottom rails are for attaching tables or chicken wire to, as previously mentioned. Even the heads of the bolts get wrapped with duct tape.