I’d write it down / take photos just in case… But also remember being able to swap SATA cables without anything breaking. It’s been a while since I had to fiddle with the hardware though, so that memory isn’t super reliable.

Germany’s Craigslist equivalent.

Sometimes you have to be patient for the good deals to show up. And usually there is no shipping. So some hidden cost in transportation and time may exist.

I bought my printer used, it only cost me 50€. Although I had to replace a bearing in the extruder.

Depending on the offers in your area that might be an option. Or I just got very lucky who knows…