Free-standing sofa swing frame (Lagoon City)

Looking for a free-standing patio swing frame, for a 6 foot 3-seater sofa. Something like in the picture (just to give you an idea). I don't need the actual swing, cushions, canopy or anything else, just the A-frame/base. If you've been stuck with a base you can't get rid of, or know anyone who has, we may be a good match!