Thanks for your offer, Bram
Right now we have no shortage in disk storage. Recently I've upgraded our server with two 6TB SAS drives. In addition to four 300GB 10K SAS drives, two 256GB EVO PRO SSDs, six 3TB WD Red drives and a 1TB nvme SSD for caching we have plenty of space to put everything.
Compared to hosting ARK and heavily modded Minecraft servers, the web server doesn't use up a whole lot of resources. We upgraded our server to 128GB of RAM a short while ago. Right now that is sufficient to run all the servers we want.
All those figures combined add up to quite a large sum of money. But compared to having to rent servers, it's cheap. Also it's a bit of a hobby