How much would it cost for 4 LPs?

I’m planning on making a bootleg of “BONETUNES (Original Game Soundtrack)” by Michael Wyckoff (On Twitter, he goes by R!OT) and it has 42 songs and it’s 2 hours and 27 minutes, and it has to be on 4 LPs, I’m making a DIY box for them, with a front, and a back cover, and a custom spine, but idk how much money it’ll cost, could someone help?