... So I don't really care who did it, all I care is there a easy program that i can put my hat files, head files, body files, and sword and shield files, then see what it looks like all together doing all the actions and works on both pc and Mac?

Because whoever makes that, I'll advertise it. That's the goal I'm looking for, I'm sure other gfx will appreciate it too, so they don't need to upload then wait, then find out about a little error in how it works and have to refund it and repeat the process.