Oh my, that really sucks. If you have large enough stretches that have fallen, you might consider the
wavy deer fence. I believe Paul's a fan of it and this might be a chance to attempt it. I'd be happy to consult for best results.
Another philosophical parallel method I just thought of would be something called a Short Junky. In my area, deer don't jump two 4' high fences that are 4' apart. My wavy deer fence is 5' high with a 5 foot spread. The theory is that deer won't jump two fences due to the 3 dimensionality of it. The inner fence can just be a wire or branch and the outer fence has to prevent them from walking/sneaking through.
So imagine an outer junkpole fence that's 5' high. Pretty darn easy to make and much less likely to blow over. Then 5' inside of it have another junk pole that's 5' off the ground. Like a hitching post. The solid outer one keeps the deer (and chickens) from walking through and the inner one scares them from jumping.
They could maybe even be braced to each other to negate the need for rock jacks...