I have a gundam age Blu ray problem

So I am finally watching my copy of Gundam age (ive had it since 2020 and just didn't get around to it) and I've discovered it's supposed to have 4 disks not 3.

So I am missing disk 4.

As far as I can tell, disk 4 just covers the back half of arc 2 and does not impact arc 3+.

Does anyone know of a way I can find a replacement disk 4 or if I could watch memory of Eden in lieu of having disk 4 since I understand it covers arc 2.

If anyone can help I'd super appreciate it.

To fend off some quick questions:

I'm in the us. I watch dubbed. And I don't particularly want to risk my computer doing something illegal.

Also, I am not of the mind to buy an entire new copy of collection 1 at 150 dollars on eBay.
I didn't find any of it dubbed on YouTube. I know Tubi has it streaming subbed but I believe that has ads.

I have reached out to Crunchyroll support in the random chance they can provide a replacement disk 4 but I. Not counting on it.