Let me say again that you do not have an issue with sort space on your database.

If the remote table is actually a view that requires sorting then ...

i) You should know this -- I can't guess
ii) It doesn't matter, because even if there is sorting going on it is not causing your statement to fail

What is causing your statement to fail is an operation that is happening on the tablespace you are trying to create the new table in.

So ...

i) How much space do you have on the target tablespace
ii) How much many rows are going to be created?
iii) what is the average length of the rows?
iv) What is your pctfree set to for the new table?

Stop worrying about sort space. It is not what is causing the error.