I am hitting the road in my 2001 Eurovan Camper (86K Miles) for an extended road trip. Which tools and spare parts would you take with you? In the past I have taken: 1. A canvas repair kit; 2. various screwdrivers and wrenches 3. Tire iron, jack, and gloves, good spare tire; 4. freon leak detector and yellow glasses; 5. error code detector. What other useful tools should I consider?