I love this idea! I hope you'll come back and add some additional photos to the article with build details. If so, I'm more than happy to up my rating. 

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I cut 4 of them in half and I use them for the top and bottom sections. You need a corner pvc coupling that has a 90 degree angle and has a third coupling socket for the vertical lengths.
To make the vertical lengths I cut up the remaining 10’ pipe into four 2.5’ lengths.
If you have never cemented pvc you should watch a YouTube video first. It’s not complicated but the pvc cement only gives you about 2 seconds before it solidifies SOLID.