Arch,
I admire your courage, but I think you are fighting a losing battle, considering that you are talking about the heat, humidity, parasites and filth of Ghana. And, if someone screws up and eats badly stored pork, death can be more than likely.
Cutting the pork into small thin pieces, thoroughly cooking them, and then storing them in barrels of packed salt (with each piece totally packed in salt, and no piece of meat toughing another), is a possible way to go. Research how "salt pork" was made during the U.S. Civil War. It was a mainstay of meat for both armies.
Yet, this requires lots of work, and lots and lots of salt, and lots of time in de-salting the meat after you remove it from the barrel. I simply don't think that this is worth it, from your standpoint.
Beans are extremely high in protein, far cheaper than meat, and easy to dry and store, and so I think that you would reap much better returns on storing protein by focusing on growing/buying extra beans, storing them over time in sealed clay pots, and eating them at times when fresh meat is not plentiful.
What are the hogs being fed to get them up to weight? Beans? Corn? Hopefully not.
Best Regards,
Mannyrock