L-bends, Z-bends or clevis's are all fine if properly installed and don't impinge on anything. Keep the unsupported lengths short.
The upper #2 dwg of Minns isn't as bad if you use a wire like in the middle #2 drawing and the end extends into the outer support tube. Not the best but workable. Just run the wire all the way into the inner tube and secure it there.
The push rods should be anchored at both ends and, in most cases, at least once in the middle.