Need advice on enclosed trailer

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I am looking to buy an enclosed trailer (22 feet) to haul my 1921 Franklin around. My investigation so far has Wells Cargo at the top of the list. I can get a lesser trailer for approx. $2000 cheaper. I won't be doing any long hauling and won't be overloading the trailer. What quality points do I look for? What breaks down on a trailer? Do I need the absolute best? Do you have any other brands to look at? Thanks in advance for any advice.