Found out that there are some stores around Athens called "Sony Centers". One of them was kind enough to let me try them, one other I called said "we don't let customers try headphones for hygiene reasons".

The gap is smaller than my previous headphones, nevertheless they fit around my ears. The price they quoted is good enough, (100€, translates to ~$141).

Found them in UK Amazon for 68 pounds (~79 €) but sadly they wouldn't post to Greece. So I am going to buy them from the Sony store.

Took a lot of thought to persuade myself though, they cost more my arranger nowdays

Thanks everyone for the patience and the help, I appreciate!!!