Sort of a side story to get to the point:
I watch a YouTube channel for a guy called Northridge Fix. He is a repair shop based in NY or Jersey IIRC, but he does great videos on the troubleshooting and repair of various electronics. He has a recent video, yesterday I think, where he is discussing an HP laptop of a type that he repairs daily by his own account. He states that HP doesn't have any spec drawings or parts specifically available to them, but because he sees so many of them that he has spares on hand for others.
I say that to suggest that you see if the fellow you took it to offers repair, or might be worthwhile to check with other repair shops in the area, and/or following up with HP themselves for possible in or out of...