Summer 2027 Trip

So, I’m in the planning stages to spend the summer on the road with my kiddo in 2027 or 2028. I’m thinking about buying a cheap trailer, pulling it for the summer (I’ve got a 4Runner so 3800 is my ideal max), and then selling the trailer at the end since I’d have to pay to store it when not in use. I know the resale will be a fraction of what I pay for new, but are we talking 50%+ depreciation or like 20-30%?
My ideal situation is finding a cheap place to store it and keeping it for future use but my HOA forbids storage in our neighborhood and an extra monthly bill isn’t what I’m looking for long-term.