Cost of living in Caymans for 6 months -year for seniors

Just started searching and wanted to know how much money would be needed to live comfortably in the Cayman islands. Is the cost of living high for food/ products? 

Well, how much have you got? How much do you spend? What do you regard as comfortable?

Is there a minimum amount of money needed for seniors that is required, like in Mexico, Belize, Panama, to live in Cayman islands? Those places require at least $2000 mth to live comfortably which includes rent/ food. Proof is also needed like pension, etc.

Please response if you know the answer, thank you.

I'm a 79 year old Italian American living in Middleburg, Florida. I am so very interested in Cayman's climate. After some researching, I found the spread between the highs and lows could be very beneficial to my health. First, I have to get to Cayman but am having difficulty in finding a travel agent to call. Yes, I have the usual questions, but I can say this much. I have a lot to give back and if I could get healthy, am anxious to do so.

Ron LaRusso, sometimes called Birdman1945 due to my love of Birds.