If you have a full export, then the only thing you really need to do is to create a new, empty database and the import should work. The full import of the full export will create all users, roles, tablespaces, and all of the user's objects. This assumes that you are using the same directory structure for your new database. If not, then you'll have to precreate your tablespaces with the new directory structure. Running import with SHOW=Y will get you the DDL statements to create your tablespaces.
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