Forget big, heavy mechanics tools as most of us couldn’t do such repairs on the side of the road anyway and big mechanical items are seldom going to fail. So, most of what you will attempt to troubleshoot and fix on the road are going to be related to the house systems (heat, plumbing, electrical and entertainment).

No matter who did the conversion, they used a bazillion screws, many of them to hold the various compartment panels in place. You will likely need to remove them to get at whatever you are trying to fix. Same on the inside. I find a small screw gun very handy. For this purpose my preference is the Milwaukee M12 as it and the batteries are small and easy to get into tight spaces. A kit of driver bits is easy to store and will insure you have all the different ones you will need. Pick up a right angle fixture to help reach those awkward spots. Add a kit of drill bits and some sort of M12 LED light and you are set. Wide channel locks will also come in handy.

truth be told I actually carry a full set of M12 tools (drill, multi-tool, “Dremel” style tool, jig saw, resip saw, inspection scope, buffer) and three different LED lights (long range spot, wide angle flood and utility) along with an assortment of bits/blades for each tool stored in snap lid clear plastic containers. At one time or another I have used them all. The multi-tool is especially handy in a motorcoach. All these tools plus extra batteries store in one drawer in my tool bay and don’t weigh all that much. Since I design and hand craft fine furniture for a living I am not shy about tackling any interior based projects on the road.