I learned a lot from this thread and clearly need to re-think the value of these sites to RVers. There's a clear consensus that I need to get fire rings, insurance (was already working on that), and maybe picnic tables in place to make these sites plausible for rental, so that answered my main question. But I also understand better that there won't be much interest in seasonal rentals from RVers if I don't have water and power, so I need to reconsider either my rental model or my target customers. Thank you all for your input!
