I've finished the majority of the building process for the bag stand. It took nearly the entire day because the instructions labeled several steps out of order. I had to rescrew everything already in at one point. It was also a solo job so the task of holding up parts in one hand and tightening them with another involved some strategy. Now, it's looking very satisfiable. Rather than move it out in the open, exposed to the elements, I'm instead going to remove my useless weight bench to make space for it in the patio.
The construction involved a lot of squatting. My knees and back held up aptly.