planning on running a number of docker containers and a couple of vms.

Just FYI, you can probably do ALL of that on a $200 Dell Optiplex 7050 SFF.

Source: my $200 Dell Optiplex 7050 SFF running 3 VMs, 3LXC containers, and 16 docker containers - not including the multiple containers within the Nextcloud AIO “mastercontainer”. All on top of being just one of three Proxmox nodes. Runs an i7-7700 w/ 48GB RAM, there is plenty of overhead to spare.