Storage underneath the trailer

I have a Little Guy 6-wide. I also have a couple EZ-up canopies that I am tired of trying to get in and out of my car every time I camp, especially when I need the 2nd row seats for kids or dogs. What I think I want to do is have some sort of storage under the trailer, just in front of the tires, where I can store those canopies. Then, I put them away when I'm breaking camp and don't have to worry about dealing with them until the next time I show up at a campground. With my bad back, the less I have to move those canopies around, the better.
There is plenty of ground clearance so bottoming out would not be an issue. I suppose there could be an issue with adding to the tongue weight but I'm not sure.
Ideally, I would like the storage area to be somewhat weatherproof/resistent so that items stored there would not be sitting in a pool of rain or melted snow.
I have searched on the internet for an underbody rack of some sort but most that I have found are for semi's, which means they are too tall. I could have someone weld something together for me but I don't know yet whether that would be cost effective. One thought is to take a large roof rack for a car and hang it on the underside of the trailer.
Any thoughts about this project?
There is plenty of ground clearance so bottoming out would not be an issue. I suppose there could be an issue with adding to the tongue weight but I'm not sure.
Ideally, I would like the storage area to be somewhat weatherproof/resistent so that items stored there would not be sitting in a pool of rain or melted snow.
I have searched on the internet for an underbody rack of some sort but most that I have found are for semi's, which means they are too tall. I could have someone weld something together for me but I don't know yet whether that would be cost effective. One thought is to take a large roof rack for a car and hang it on the underside of the trailer.
Any thoughts about this project?
