Air box stay on 1976 KZ 900

1976 KZ 900 A4

Previous owner removed airbox and installed air filtration pods. I purchased an airbox that I'll install soon. I plan on using g K&N RU-2600 filter in place of silencer. I also have to find an airbox stay.
Question: Does the back of the airbox just sit on top of the stay or is it somehow attached? Does the stay attach to frame utilizing the same bolts that hold the battery box ( hard to tell from Kawasaki.com parts diagram)? Has anyone fabricated an airbox stay?
Has anyone purchased parts from PowerSportsEast out of Bear Delaware?
Thanks