Autosocks

Even though the OP has quit participating, barring some off road or off the beaten path winter travels, there is zero practical need for chains or socks with that rig and “normal” improved/well traveled roads or highways. 
unless maybe trying to do it on bald tires. 
If one can’t bomb down the highway in inclement conditions in a well equipped 4x4 with good tires and a ton of weight in the back, then one should re-think the feasibility of them driving in those conditions at all.