110v?? Camping??
Coffee french press via hot water from the Coleman stove?
Microwave!!! What??
Your trailer is along the same lines of mine.
4x6 but my tent is 2 queen beds on each side of the 4x6 floor. I bolted a 50cal ammo box to the front plate of the trailer next to the tongue box. The ammo box houses a 18ah battery, solar controller, fuse block. I added a rear LED ATV light to the trailer so backing into dark sites is now lit up I can see.. Added strip LED lighting to the tent with switches wife loves em. Added a led strip to the tongue box lid, when open it lights the hitch and back of the car. Added a simple 12v charging hub for our small stuff, ipads, cameras, phones, kids watched dvds once via power from the charging hub. Two small solar panels stowed in tongue box get set out. Works great on our 2nd season with it. Cost me about $200 for all the bits, wire and connectors.