Hello, frustrated user dag.
Welcome to Microsoft Community!
After reading your description, I understand that you currently have a need to replace the SSD for your Surface Studio 2.
We can actually perform this operation, please make sure that your SSD does not have hardware compatibility issues with Surface Studio 2.
First, regarding the dismantling or servicing of equipment by ourselves, please allow me to share a link with you here:
Self-repair information for your Surface device - Microsoft Support
The link mentions warranty issues after disposing of the device on your own and other related things.
Please make sure that you do not have any hardware compatibility issues with Surface Studio 2, and that you have the hardware expertise and tools you need, such as a Torx screwdriver (T3 and T5), suction cups (for removing the bottom cover), anti-static bracelet, and so on.
You can also refer to iFixit's guide for detailed steps:
Meanwhile, if you find it difficult, alternatively, you can seek the help of a professional hardware technical support team.
If you end up reinstalling your SSD, you can visit here to get an image of your Surface Studio 2:
Surface Recovery Image Download - Microsoft Support
In summary, we can implement a hard drive replacement for the Surface Studio 2. And seeking professional hardware support would be a more reliable approach.
These are some of the suggestions I can share with you.
Best Regards.
Leo.L - Microsoft Community Support Specialist