ByronTX,
I worked at a mid-western state recreation area (Lake McConaughy SRA in Nebraska) that has approx. 105 miles of sand beaches (if the water is at the right elevation). We allowed primitive/undeveloped camping pretty much everywhere on the beach. I've spent some time in the vehicle/farm equipment maintenance world, and when I first started figured the sand was going to be a huge pain,,,,but was pleasantly surprised. And for the record, we did have a lot of wind blown sand, and it was super fine 'sugar sand.' In fact one winter I was able to witness a picnic table frame be cut in half, both sides) by wind blown sand approx. 8" off the surface of the beach. Although, the winter winds were the worst. For the record we had over 2,000 campers on the beach on multiple holiday weekends.
Here's what I found, in general sand will find a way to get everywhere, even where you least expect it, but it seems to be pretty easy to clean up with a good vacuum.
Parts that showed no real issue with sand (No Problems),,,and I really expected them to give us issues: U-Joints, Sealed Bearing, etc.
Parts that were affected (had issues): windshields (constant sand blasting), electric motor armatures (think cheap generators), lawn mower blades, and human posterior cracks! No seriously, the sand didn't really bother the vehicles and campers too bad.
I think your biggest concern will be salt water corrosion on all exposed metal parts.
Wait to see how others chime in, but my experience was that sand is pretty much a non-issue to vehicles/campers (in general). That is, unless you get stuck in it.
