Hey all I am looking for some ideas to make my Dell SFF optiplexs rack mounted. Has anyone ever got them into a 1U chasie?

I'm in the early stages of redoing my homelab hardware. I have two Dell Optiplexs and I want to fit them in my rack / make them more aesthetically pleasing but without taking up any more space.

The only reason I'm not looking to replace them with a USFF / mini server is because I like being able to have two drives and pci slot for Ethernet ports but I'm willing to hear out other cost effective options. My rack is a short depth rack.