Powermac G5s today, which I am going to pick up tomorrow: https://www.ebay.com/itm/Untested-3X-Power-Mac-G5-no-hard-drives-they-power-up-they-all-as-is-cheap-2003-/113712576824?_trksid=p2047675.m43663.l10137&nordt=true&rt=nc&orig_cvip=true I plan on keeping one of these and flipping the other two after I install a hard drive(I have a pair of 170gb drives which I think will work fine, and if I can find a 128G or less SSD, I may use that as well). I looked through the FAQ and didn't see anything about installing the OS from scratch. So, the question is, how do I start? For supporting hardware, I have a Mac Pro running High Sierra. I know I can't install High Sierra on a G5, but I might be able to build boot media or something. So, where do I get started?