Replacement case for ultra-quiet plus build?

Hi all, new prospective server builder here.
I’ve been acquiring parts for the ultra-quiet plus build (with the intent to keep expanding/using this build as long as I can in the future), but looks like the case suggested (Silverstone KL04B) is out of stock on Amazon and Ebay.

Any suggestions for another good case, compatible with the rest of the build, with good future expansion capabilities? (currently going to start with 4 drives and add more later)

Thanks in advance!

I’d just wait for that case to come back in stock, it’s a really good case…