To make sure that a setup with a lot of suspended items will work, visualize (or better yet, make a diagram) how everything is going to be mounted. Then, integrate it into the rest of the setup of instruments such as drums, keyboards, etc. and find a way that fits (or not).
Depending on the instrument, there are a variety of ways that instruments can be suspended. Suspended cymbal stands can help for many instruments that aren’ too heavy (don’t rely on a cymbal stand to hold up a 36″ tam-tam). The draw back is that the base of the stand will eat up a a solid square foot or two for just one instrument.
Almglocken can be mounted to be parallel to the ground or suspended to be perpendicular. When suspended, they can be zip tied to just about anything, but they should be positioned high enough so that they can be struck properly near the opening of the bell.
Tuned gongs need to be struck on their raised center, and should be placed at a high enough position so that they can be struck comfortably.
Beaters vary, but fragile instruments (like tuned gongs) should be played with soft mallets. Performers may refuse to play a note that has a high likelihood of harming an instrument.
gongs, almglocken, bell plates, etc.
cymbal stand? rack?