Picture comparison:

I'm quite annoyed that they aren't compatible, I had previously asked Rich of Rich'sPSXParts if they were and he said yes. I figured someone who sold various internals labeled for particular models knew his stuff...apparently not. Shame on Sony too for the presumably pointless revision.
EDIT 2: Now I need information on how to remove the bezel so I can put it on the original tray. I will have to glue it, I bought the whole tray so I wouldn't have to do this, but now I have no choice.
I also need to know where the eject/reset ribbon leads inside the PS2, because that slipped out accidentally. I have to get under the disk reader somehow and this is going to be difficult.
What a nightmare this has been, flustered is not even the word - it's more like this:
EDIT 3:
I fixed the power ribbon problem, took some very invasive disassembly, but it's all fine now. Now I just need to know how to take the bezel off the tray and put it on the other one using adhesive.