Just to close this out, I swapped the ball joint yesterday with no issue. The part was by Moog, ran $30.00 (remember, I'm in Costa Rica) and cannot be greased. Removing the old joint was a snap with a ball peen hammer. The new one was inserted and secured to the knuckle with the screw. Using the ball peen hammer and tapping around the top of the new joint, the joint was worked into place. While I know it's recommended to use a press, this method seems to have worked fine and should be considered if a press isn't available. The job took less than 30 minutes, including removing the tire, and only required a couple of metric wrenches and the pall peen hammer. Some videos mention having to remove the upper controller arm to swap out the joint, but I didn't. To remove the old joint you have to hammer up on it through the controller arm. It is important that you stabilize the arm as much as possible to both ensure it isn't damaged and to allow for maximum pressure to be applied to the joint.
While you're there swapping out the joint, it's a good idea to check all the suspension parts to see if there is anything else that needs to be replaced. In my opinion, if one ball joint has gone bad, there's a good chance that others have, as well.
