I've got a pair of stands and a pair of quintets. The problem is that besides the square plate atop the stands and the stands, I've misplacced all other parts plates. As you know, the quintets have horseshoe-shaped "legs" at the bottom. Not quite sure how to go about mounting the quintet on the speaker stand. I'm pretty sure I'm going to need additional parts. But what and where to get them? I'd appreciate some pointers. Thanks!