Suggested "Road Kit" for repairs

Pretty big question. I don't want to be broke on the road and not be able to get to help. So it has to roll. I don't want to drag my stuff so I have to be able to secure my low hanging stuff. I don't want to be not visible so I need to be able to test my electrics. I want to have ability to test my trailer to TV hook-ups. I don't carry spares other than a tire. I carry tools, to include a meter. I want off the highway. So I have everything to change a tire, wire hangers and duct tape, a meter and basic hand tools and socket sets. Electric supplies to include fuses. I want to arrive at a place I can fix the issue and be safe. When I first started RVing I had too much and time has taught me what I do need, it changes with every trip, but not much. I have always found I could get what I needed if I got to where I was safely.