If I use Bun legs or feet what size would I use and what metal furniture plates would I use I see straight,corner and angle what's the difference?

It's beautiful but there is zero to go on as far as how this was actually put together. And none of the questions asked were answered so we still don't know much of anything about how to do this. Typically Hometalk articles include at least a simplified tutorial. Could you please update the article to answer some of the questions, if not edit with instructions? Would loved to have tried this if there had been more to go on.