I suspect it's highly unlikely you'll find a save collection that did Manaan last. Trying to merge your globals into a different world state is just going to break things.
If you're completely unwilling to start over, I'd suggest you'd be better off finding either a LS or DS run (to match whatever you did), skipping over Manaan altogether and pick it up from the point of no return after all the maps are done. Don't try to merge in anything, just edit the main character with KSE to change it to whatever yours was.