We have used the D.I.Y shop by the market. They have masonry paint, they also have ladders, but they sell them, you could ask if they would rent some out. We also us the D.I.Y. Shop in Fethiye as they have a bigger selection of stuff. So if you cannot get the colour of paint you want in Calis they usually have it in Fethiye.
Both sell hammerite paints. We have used it for our door frame, also our front door went rusty too, we decided to replace it as the ones the house builders put on are not the best quality.