Have you considered making your own? I started making my own last year but unfortunately never had time to finish it.
It’s not that difficult: 2 peaces of wood hinged to fold, Some aluminum support rods, tent cloth material attached to the aluminum rods and floor board to form the tent, and a canvas cover for protection when folded.
If interested I can give you a better description.
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A.B.
www.ShortWheelbase.com