IT WORKS! 
I just got Buoyancy working!!! Woohoo!!! 
I need to do a bit more polishing and test it out with a few different objects with different shapes, but it actually works! Man I am so happy right now. I will try to model a simple boat and some other shapes for you guys to play around with.
Expect a new release WITH buoyancy in a couple of days!
Thank you so much in case you read , I had to brush up on my C++ skills for a couple of weeks and learn the API (and coding conventions), but I finally figured it all out. Your BuoyancyComponent works great! I plan on modifying it a bit to automatically detect the shape of the object for the test points, with adjustable COM and weight of the object to increase or decrease the displacement of the object (for example the draft on a ship).
And thank you for your patience on , sorry it has taken so long… I’m finally able to work on again so stay tuned! 