How to make a cheap spaceship kit?

Hello!

This is the 3rd official short film I am making with my company and it will be a horrible comedy about a mafia in space. For this we want to use the interior of a spaceship as a setting and we want to emphasize that it looks super cheap, but still good enough not to look cheap by accident.

We will probably have a budget of around 1000-2000 dollars to build this spaceship, but since we are just starting out, we want to make it as cheap as possible. If anyone has any tips on how to build this spaceship as cheap as possible, please comment.

Here are the drawings my friend made of the interior of the spaceship:

https://preview.redd.it/lxwqjxzdekpd1.jpg?width=3024&format=pjpg&auto=webp&s=b3d5631dd4c100e3d481a328bdc9f8cad496941d

https://preview.redd.it/eza16wzdekpd1.jpg?width=3024&format=pjpg&auto=webp&s=456139f72ea51a96923e24996353784450b3d613

https://preview.redd.it/q3zvbzzdekpd1.jpg?width=3024&format=pjpg&auto=webp&s=e7049862904478e9ec9bc6240379f1dab5ed6029

https://preview.redd.it/pau7q00eekpd1.jpg?width=3024&format=pjpg&auto=webp&s=aceeed6c4fd1cf6cad13ada378c4d28835380bfa

https://preview.redd.it/upftcb1eekpd1.jpg?width=3024&format=pjpg&auto=webp&s=13bf0a8fd009de48cdc6651959f1b95f1d2fcd88

Please help!!