OP, you said soft sand but what you are driving on being to pull a 5th wheel or virtually any trailer is not soft sand at all. Here's a pic of the over grown beach/or soft sand emergency lengthened quad ambulance vehicle we have right here for our soft sand beach. Wide soft tires with 6 wheel drive and it even has gotten stuck several times on the flat beach. Michigan State Parks also has these same sand friendly vehicles around the state to drive across the sand in the state parks. 2 of them right here at Grand Haven State Park. I sure would like to see you drive your TC rig on any beach sand here in Michigan. Zero clay content, pebbles, stones, rocks, or anything that will pack the sand. It's 97% pure quartz sand the consistency of table salt or sugar granules and never packs down.
Pic of our ORV sand vehicle here: [img] north-ottawa[1]