I really wouldn’t touch secondhand Ms. No upgrades, no repairs, horrible components (CPU is ok, everything else is straight from the dumpster in order to cover costs).
So when something dies on your device from a company that has a long history of terrible design and QA (I’m betting on storage) you have to pay another $1000+ to replace the whole motherboard. On top of that, I’m guessing that they’re also ripping off customers when selling those replacement boards, as having usable ram and storage costs an extra $1000+ when buying new.