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I have not seen one but making a device similar to that wich Meade has on their tripods should be no bother.
If you have tools and can work with metal quite a sophisticated one can be made but if you have nothing more than a drill and hacksaw a practical device can be made from a length of 3mm x 20mm aluminium, some 8mm bolts with nyloc nuts and three worm drive hose clips.
Cut the Aluminium into three pieces about 50cm long (this length can be found by experiment). Drill 8mm holes at each end. Cut three more short pieces of aluminium (50mm) and drill a 8mm in one end then bend these into an obtuse angle so that when they are clamped under the hose clips they will be at a suitable angle to mate with the other parts. This will be very basic and won't fold.
To make it fold up you will need to make angle brackets and use some extra bolts so that the spreader legs can pivot up and down.
Barry
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