You bought a trailer with some defects - got it, those things happen.
You made a couple unsuccessful attempts to get things fixed - it happens.
Your error - sold the trailer.
Legally you are obligated to give the dealer/manufacturer adequate opportunity to repair the defects. You failed to give adequate opportunity by bailing out and selling the trailer. Jayco and Camping World may have failed to meet your expectations, but they owe you $0 compensation.
I hope the replacement works out better for you.
p.s. notice how paragraphs make it easier to read?