Backgrounds for green screen project?

Not gaming, but I’m guessing there’s some expertise overlap in our guild. I’m looking for some decent spaceship interiors for a project I’m going to be filming soon (basically the cockpit of a ship from Space:1999, if anyone remembers that one).
Anyone know of resources online or know someone who does that kind of work? Our budget is small but do I have a few $ to put in, since otherwise we’re buying and hanging backdrops or building sets. Thanks!