I also went through all stages of grief and multiple bans due to "the modchip problem".
My advice? Go buy an unpatched Erista. First of all, this will save you access to online services on your original Switch if your hacked one gets banned. Second, your original Switch will be untouched and ready for use if you fuck up the hacked one somehow. And third? No need to tamper with the internal hardware and deal with soldering and melting metals. There are various different safety nets and precautions with softmodding, there are none with hardmodding - if you fuck up, your console is done for.