We went to see the house again. We took lots of photos, and made some measurements. We talked with the owner... and we didn't find any problems at all. So tomorrow we'll go and meet the owner again, more formally, at the estate agent's office. Apparently people don't generally use lawyers here to buy and sell houses, the contracts are drawn up by the estate agent. We hope it will be in English as well as in Greek. So far it all seems very friendly and easy... we'll see what happens tomorrow. If we go ahead and pay the deposit, and ask for a contract to be drawn up, then I'll go ahead and post some of the photos.
Meanwhile, on the way home, we saw a gorgeous sunset, which is pretty unusual here: