Almost any equipment rental, rents them. Walk behind is cheaper, but I wouldn't want one for that long a run in rocky soil.
Get a hold of Wburke on here, he has a rental yard somewhere in DFW, bet he could get you ready to go.
I would go ahead and get it done, those ride on's are plenty strong, wont be froze too deep anyway. We have another wet spring and you will have a mess on your hands.
Friends don't let Friends drink and post.......
The first 5 day's after the weekend, are the hardest....