Nothing says the Supreme Court needs a code of ethics like a justice accepting free luxury travel from a GOP billionaire megadonor, and then failing to recuse himself when that donor had business before the Court.
I have a suggestion based on the old adage "idle hands are the devil's tool".
Instead of creating an aristocracy of millionaire justices, why not use the proven pool of federal judges? It's not like SCOTUS puts in a 40-hour work week.
A panel of current judges could select cases based on merit instead of "interesting cases" with political intentions.
We might have to expand the number of federal judges to accommodate, but that would still be cheaper than the mess we've got going right now.