Selling boats in sweden now is extremely difficult ( buying one is easy
there is an excess of old second hand boats flooding the market. One reason is the German mass produced Bavaria's have killed the Swedish boat building market
I have a friend that has big problem trying to sell his Storfidra for over a year now and its pretty much already equipped for cruising with e.g. a Koster wind rudder, aluminium doghouse etc. if you decide you must sell your boat try to do it in Germany or Rumainia anywhere but Sweden
I think your idea to sail her down to Greece was good. Fix her up there. And then advertise short term lease her out to people ( companies ) that sail her for a week or two on their vacations.