Got a new happy with a few disks and thinking if crazy options. Planning on using centos. Ideas or suggestions?

Ssd 950pro 512Gb
HDd wd 7200 1Tb
HDD ... 7200. Something I had laying around.

I'm thinking bootable bcache between the ssd and 1tb disk with luks.

The extra disk I'm tossing in will be for /var and /home iso's and NFS to keep needless wear and tear down on the ssd. Also luks.

Going to have VM's and such on the bcache as well. Thinking VMware workstation just to make getting vcp easier, but could do it KVM.