Dead Space 1 DLC Availability on PS3

I just got Dead Space 1 and 2 on PS3 and I want to purchase the DLC for both but I can't buy it through the PS3 store. I reached out to Playstation support and they said it was completely removed from the store, so it's unavailable through there.

I was wondering if anyone knew if there is still a way to buy a content code somewhere (probably won't work since I imagine it needs to access the content on the store anyway) or if anyone knows if they ever made a complete edition that has the DLC content on the disc itself. I can't find anything on Ebay but most of my results are for Dead Space 2 and 3 since Ebay's search function doesn't differentiate between them well.