I have a bit of a problem with the dual propane tanks that I have them on tongue. To get the whole image, the battery is on top of the lift and it is not something that I am excited either. So, I had so many thoughts about this, as I don’t need two propane tanks. I am carrying weight for nothing, while the storage space is in high demand. I just bought a 5lbs propane tank for my outside stove needs, to get ridoff the green bottles and I have an idea that is growing in my head. Removing the propane tanks, installing a 4cuft tongue box (15”high) and storing inside the box one 5lbs tank. Actually two of them, as one will be used for the stove and removed as need it, the other one will be a fixture, I will have it connected to the propane line. I will make some openings in the box, on the side and on the back, to allow a minimal ventilation. I will need to get in the box the battery too (it’s AGM so no issues with vapors) so it will be there at least a couple of holes for the cables. Most likely a bigger cut off to allow me to access the propane tank to turn it on/off from outside, without the need to open the box. Without that, I will not be able to turn off/on the tank if the beds are pulled out. If need it, I can put on the box lid some sort of venting in the style that we can see on the sport cars hood. I realize that 5lbs of propane are not going to last, but I am camping mostly with shore power, so my propane needs are resumed to water heater (used only as need it, I don’t let it run continuously) and some minimal cooking inside of the tent (which is happen very rarely as I prefer to cook outside). In this way 5lbs can last many trips and if it is an emergency, I can pull out the second 5 pounder. For me a 20lbs is way too much, it can last me a season and at the end I still have like ½ if not ¾. My trips are relatively short, 2-3-4 nights at the most, but I guesstimate I can go ahead with the 5lbs even for 10 nights out. Carrying around a 20lbs doesn’t make sense, less for two of these, are just ballast for tongue weight. For trips where I know ahead I will not have power, I can take with me a 20lbs tank on the side. The 5lbs tanks will have a gauge to estimate the propane level, I can get an adapter and I can try do the refills at home, if the refill trips are becoming an issue. In this way I will get some considerable storage space. I will not save on weight too much given the weight of the box, but I will get storage. What do you see wrong with my plan? What I overlooked? Any reason why I should not do this (beside the “you will never know when you will need more propane”) A 10lbs tank will not work given the height.