Yes, i know. I bought 25 X 16G for $80 yesterday. I Just wasn’t sure about this model in particular.

I have 3 servers. 2 R620 and 1 R630. The fans are loud before post but after they are quite quiet. I have them in my garage so noise/heat is not an issue for me nor it the power consumption. If I were in EU that would be a different conversation. I run Proxmox on them in a cluster and nested 7 ESXi “servers” along with a bunch of other LXCs and VMs. I don’t think it’s a huge investment for less than $400. You could flash that H710p to IT mode and have the TruNas ( or any other one ) manage your HDDs.
Also at the same time reduce the fan speed. You can have so much fun and functionality with it. Keep in mind the everything resides on 1 physical server and you will not have any redundancy. However, Proxmox, ESXi and the like need at least 2(+ witnesses) or 3 to allow you High Availability ( HA ) and to be able to move your VMs. Having 1 hypervisor on the bare bones and nesting ( installing other Hypervisors) under it you could create a hell of a lab.