What are the use cases? More RAM is nice but could be overkill if you’re bottlenecked by CPU, and if this is for running a few simple VMs or as storage then you may not need much of this.
RAID is generally a good thing but don’t get complacent, follow the 3-2-1 method. I.e. you might be better off saving the cash and using a backup script to push stuff you really care about to the cloud, and pay for cloud fees vice hw.
My father in law was a commercial pilot and he had a home server just to keep photos and travel writing while he was flying and away from home a lot. I helped him upgrade some of that to the cloud, since that makes for sense when on the other side of the country, but he still has a bunch of stuff at home.