Figuring this out.

Evening everyone, I hope you all are well. I imagine this question has been asked a million times. But what is the best route for "saving" on mocs. I only have a bricks and minifigs. I have a limited stock of parts. The moc I want to build is an batcave along many others. But almost $200 dollars for 330 pcs, via bricklink, seems a bit steep. Keep in mind this is only the first part to a fairly large build. I will put a link to the builder. https://rebrickable.com/users/BricksbyJim/mocs/...