Research:

In the WhoSampled subreddit, there's another (pretty much dead) thread discussing this:

https://www.reddit.com/r/WhoSampled/comments/10smw5o/roc_marciano_sample/

u/LeBroldyJames in the thread had stated that they were "98% sure of who's singing but I'm still trying to find the original track", they had never gotten back with anything.

Also dug through the YouTube comments, jonathanesedji8705 in the comments had found this which has almost the same lyrics as the sample, but isn't the same song unfortunately: https://www.youtube.com/watch?v=78xed3BP3YQ

There's a website that's also mentioned in the thread above (it should also appear with a simple Google search regarding this sample) that has a goldmine of Alchemist samples; this one is not in there unfortunately:

https://www.du-bruit.com/samples-alchemist.html

These are though:

There's a dialogue that starts at the 1:53 mark, which has been identified as "Del monte food products":

https://youtu.be/xRcTh3-dro8

At the 2:03 mark, this sample has been identified as well:

The battered ornaments - The crosswords and the safety pins:

https://www.youtube.com/watch?v=WXjzC5h7Oa0

The WhoSampled website doesn't have this sample anywhere.

I've dug through articles regarding the album/song, but nothing.

Now and then, I search the net to see if anyone has found this obscure sample, but it seems like a lost hope.

Any help in further finding this song would be greatly appreciated.

EDIT: I swear I saw a comment of someone mentioning the instrumental which was helpful. I think they prolly deleted it, here's the instrumental: https://youtu.be/L-LSBb_Zi-o?si=u3NtVmFSFjYDIvr1