I am narrowing down to Supermicro X11SSM or X11SSH-F, I don't really need IPMI but thought M2 connector could be useful in case I want to add SSD cache, and don't have to use up the SATA connectors. And for CPU I'm thinking E3 1235L v5, that supports Quick sync and is low power, but will have to go with ECC RAM. Will these be a good starter kit with less trouble on the DSM installations on drivers etc and keep relatively future proof for sometime (with ability to expend drives as well as RAM/CPU power upgrade)?