As long as there is no limit on the other branches, yes.
No, and there should be limit on the other branches.
The only question is, what limit do you put on SC justices...10 years? 20 years?
I would support 18 years on SC Justices (as long as there are 9 of them).
As far as the 22nd Amendment goes, I think it should probably stay.
I'd perhaps support it as a compromise if we could give electing the Senate back to the state legislatures.
Yes, we should repeal the 17th Amendment, regardless of what happens to the 22nd Amendment.