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I think the “Dolly” will do the job alright providing there is some weight on those wheels and the tripod legs are firmly held in position. You probably can keep the tripod on it all day providing you have chocks on the tyres or preferably brakes to lock it down. It’s all down to price these days and longevity, how long will it last before some over enthusiastic soul decides to stand on it and ‘scoot’ around the set. It’s the design and engineering you are paying for and are there any spares back up. NB, cheap wheels and tyres will eventually let you down, so think longevity!
Those Rickshaw dolly’s are now getting very popular and are easy to make. Attached photo.
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