Physically, I don't doubt it will fit. The catch is how to make it useful once it's in there. You might be upto some customization: motor mounts, transmission bellhousing, wiring harness, computer, exhaust, engine accessories etc. I have never been close to an FX50 engine, so this is mere speculation. Also, there weren't that many VK50VEs in the US since only the handful of FX50s sold had them and they aren't cheap, so the number of people that have played with them will be limited.
Not sure about how aplenty they are in the Bahamas, but how about you follow this other thread to see how sergofast's Titan engine swap turns out?
titan-vk56de-swap-in-progress-06-infini ... 14391.html