I enjoyed your series. I firmly believe that Greece, especially Athens & Thessaloniki, are untapped areas for urbex photography. Many Greeks post such photos from the outside of buildings but rarely the inside. I would love to encourage young Greek photographers to start exploring!
People want to visit Greece for the islands but I'm dying to go again just to see all the abandoned structures!! Afterall the Akropolis is one of the first ruinporn sites
And you can buy a Nikon D90 as your first camera. It's a little older but still well respected. You should be able to get it cheaply there as people are desperate for cash! Keep shooting!