All prices are quoted in Barbados dollars

If you are paying by credit card then no security deposit is required. If you are paying by cash then $250bds is required.

Yes the insurance is fully comprehensive

In case of an accident your are liable for the first $2000bds. After this amount, once you have followed all the insurance rules you will be covered by the insurance policy. If you do not comply with the agreements then you can be liable for all damages

List of rules are broken down on the insurance section of this site