You're probably not going to like what I have to say...but I'll say it anyhow.
You have, let's say, 66 chickens. If you opted for 3 sq ft of coop space (Idaho...don't ya'll have snow, etc.,? where the chickens would need to be inside maybe for a few days?) that would be roughly a 200 square foot coop....10'x20'. That's a sizeable coop with less than optimal square footage. I'm curious...where have the chickens been staying?(other than the two roosters)
Driving some fenceposts into the ground to support the upright pallets and then placing the cattle panels over the top with a tarp on it is an option. I would say a "fast", temporary one for the moment. It can be done.
66 chickens... Who's paying for the chicken feed? If they're being fed ~1/4 pound of feed a day that would be around 115 pounds of feed per week (minimum $80 per month?)...a pretty high expense for having an almost non-existent income coming in. I understand that the chickens are apparently free ranging, but still there should be some balanced feed being fed. Who is footing the bill or do they just scratch up their subsistence??
i think the couple of roos roosting in his man cave was the last straw, he didnt like poopies on his tools.
I hope that wasn't meant as sarcasm? I wouldn't like "poopies" on my tools, either. Since your father is already letting the chickens run all over his property...doesn't he deserve his own "man cave" (if that is what you want to call it?), especially since he owns it? And you know something, I bet that if you need tools to build your coop that you'll be using *his* tools.
The following will answer several of the problems that you are facing...
Build an 8'x8' hoop house out of the two cattle panels, pallets, chicken wire, and tarps. An 8'x8' house is 64 square feet...which should house 12-16 chickens easily, though in bad weather conditions would still be on the smallish size. Next, sell, process, or give away 75% of your flock. This will lighten the chicken load on the property, will cut down on the feed bill, the coop will be able to house the remainder of the flock, there should still be plenty of eggs to eat, and it will take some stress off of several people.
Once your husband finds steady employment (and possibly you, too) then you can re-assess your situation. Maybe down the road ya'll can purchase your own place and build your flock up to what you want it. For now, though, downsizing would be very prudent.
Best wishes,
Ed