The way the Supreme Court works in the US is not how it works in most other democratic countries. The combination of that system with Common Law is quite unique in fact.
So there are lots and lots of already existing alternatives as to how to place a Supreme Court differently.
If you were to design a government system from scrstch, knowing what you see now, where would you place a Supreme Court?
In prison?
The way the Supreme Court works in the US is not how it works in most other democratic countries. The combination of that system with Common Law is quite unique in fact.
So there are lots and lots of already existing alternatives as to how to place a Supreme Court differently.