new to this hobby

Im looking to make a nas, i‘ve been using a tinyminimicro but it has now completely run out of storage. I’m very enticed by the MASS Modcase especially because I reached out and the creator said in theory you could stack indefinitely which is something that I might like. I have two problems though and I was wondering if you could give your thoughts.

1. I don’t have a 3D printer, so I would need to print it through a service right? Would that be manageable or basically impossible?

2. I’m really interested in the hotswappable nature of some NAS’s and really want to have that on my NAS too. Are there any backplanes that would fit that case? or is it a lost cause?

As far as the NAS itself goes I want it to be a media server as well as hosting some game servers.

I was thinking this for specs:

Intel Ultra 9 285k

MSI MPG Z890I EDGE TI WIFI

32 GB DDR5

And Maybe an HBA so I can hook up more drives.

If you have any thoughts on this please let me know! I’d love to hear what you have to say.