Looking for real world experiences....we travel with a HDT and 5th wheel with a Smart piggy backed on the truck. We recently purchased a side-by-side and are looking to upgrade to a toy hauler. Planning to visit Elkhart to see a few floor plans but need to get there by traveling through TX, OK, KS, MO and IL. Then we'd like to transition up through the UP of Michigan, Minneapolis and SD on our way to the rally in Boise - all this while double towing and total length just over 80'. Any advice?