Longbowman,
To properly set the lace hooks, you need to get press with the proper dies. They can be set by hand, but it still requires a bottom die of sorts so the hook isn't bent. The presses can run any where from $200.00 to $800.00, depending on what you can find. The best place to find a press and the hooks is from the guy who supplies the shoe cobblers.
Antler buttons look cool, and they are very traditional looking, but due the nature of all the stuff leather can do when exposed to various elements, they usually don't last as long as an armguard should.
Thanks,