I've been working on getting parts for my computer build for a while. I remembered my grandparents have this computer from about 20 years ago, and if you know me you know I love 90s/2000s aesthetics, so I got approval from my grandmother to gut it for the case. They haven't even turned it on in about 10 years, so they obviously didn't care that much about it. I carefully took out each part and placed it in a box and then cleaned the case. What do you think?

I tried figure out what the model of the case was to no avail. I found extremely similar models, but not this one in particular. I believe it's somewhere in the range of a Mid ATX Super 2000 9XXX. I also wanted advice from any computer build experts here as to whether or not I can put new parts in this successfully or if it will need modifications. I think I might keep the CD/DVD/Floppy drive in it too. Should I replace those?
P.S., if you need more pics i'm happy to take more.