Renee - have you thought about putting up a tarp around your run to protect the girls until you get that plexiglass? I was thinking about that today and even though they wouldn't have anything to look at, at least they'd still be warm and dry in the run instead of only the coop being dry. I have been thinking about putting a tarp up on mine as well for the winter, but don't know if it's necessary yet. I'm thinking of putting a tarp along the whole house side and door side of the run, they'd still have the whole front of the run to look out and for ventilation, but would stay warmer and dryer in there with the driving rain. WDYT?
I'm glad I saw this before jumping ahead.
I started thinking about that yesterday. I think I'm going to get a new clear shower curtain for our bathroom and cut down our current one and use it for a wind block until I can get some plexiglass. It'll be a good excuse to get a new shower curtain liner.
Your run is larger and longer - a tarp would probably work better for you - or maybe some clear gardening plastic.