The tool that was referred to as a "ball joint remover" is called a "pickle fork", and it should work just great. And here's the good news. I recently needed one of these pickle forks to remove a steering stabilizer on my Toyota pickup, and I found that my local Autozone rents them for free. They require a deposit for the cost of the tool, $15, and then they refunded the full amount when I brought it back. There are at least two sizes, one for ball joints and a smaller size for tie-rod ends, so take the frame with you to the store when you go. So call the parts stores in your area and see if any of them have the same deal.

Good luck