Need help finding a background

Hey everyone, I’ve got a scene in one of my episodes where two of the characters have to crawl through a vent, in fact, the vent is what they use to get in and out of their hideout. I’ve looked online and on these forums but not found anything as of yet, any help is appreciated and I’m happy to give credit in the episode/s it gets used in.

You mean something like this:

Yeah, but more of a side view