So I almost finished my first section of fence, and I've learned two things.
1) I have more patience than I thought.
2) There are crocheters out there who love to make some spare money.
After 4 weeks of granny squares, I realized my pace couldn't be kept up. After explaining my predicament to my stitch and bitch, they suggested outsourcing some of the squares. And low and behold, I had three willing people who were happy to sell me squares at a very reasonable price and pictures of the final project on the playa.
With each of them doing 100 squares each, and in addition to mine, I should have all the squares done by the end of April!
So... I took a break from doing the squares, went into the office a Sunday and started putting the first section of fence together.

They're stitched to paracord for strength:

And the paracord at either end will be used to tie them securely to the posts:
