Hmmm,
I don't ride in sand but a couple things make me wonder.
Do you ride in the sand in other machines? What other machines do you see out there?
Where I'm going with this is I believe tire selection is important in sand (although I don't know what tires are best).
If the sand is loose, will the RTV have a tendency to sink since it weighs close to a ton?
Not sure where you're heading but if/when you do go for the first time, make sure you have enough "stuff" to get you out if needed. (other machines, winch(s), planks or whatever).
Brian