As an experiment, I just bought a couple of the Ethernet to fiber boxes and they should be here tomorrow. I didn’t want them near my equipment either, but as an experiment, I only bought a 1/3 meter fiber cable. But I have some longer car 8 cables or a longer fiber cable is cheap. If I like the sound, like @jjss49 says, the power supply upgrades will be next.
TP-Link Gigabit SFP to RJ45 Fiber Media Converter, Fiber to Ethernet Converter 10/100/1000Mbps RJ45 Port to 1000Base-SX Multi-Mode Fiber (MC200CM) Black https://a.co/d/8LwceJf