This is a great mod! I've been looking for a mod like this for the longest time. The only reason I gave it a 4/5 is that it says there is a retractable test. I don't know if this is a glitch, but it doesn't have one.
The tent can be enabled in the Parts Selector. I wish the trailer was more destructible, at least adding a license plate section in the PS would be cool so we could apply AgentY's Car Values mod to make it more destructible.