The framing we would encourage is this: decide whether you want Caribbean property on its own merits first. If the answer is yes, the real estate route lets the same capital do two jobs and is a genuinely good structure. If the answer is no, then you are buying an asset you do not want in order to save money you will not save, and the donation is the cleaner decision.
We have no preference between the two and are not a property agency. Where a client's case points to the donation, we say so, and the cost breakdown shows what each route actually totals for a given household.