Help with securing conduit to trailer

Does anyone have suggestions for securing 3/4" conduit into standard stake pockets on a flatbed trailer? I am attempting to use conduit and Maker Pipe connectors to build a back wall and canopy to convert a 20' trailer into a mobile covered stage. The trailer has stake pockets roughly every 2 feet, so I thought I could use them to hold the uprights, but I'm struggling a bit to find the best way to do this securely. Also, any thoughts/suggestions on the design would be appreciated!

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