I don't mind Filling the thread with Helpful advice, I just hope the servers don't mind me.
Any way sure you can go to the Hardware store and buy Copper end caps, they usually come in 1 inch 1/2" and bigger.The caps will be flat so ya need to round them by Hammering. the caps don't last long so sometime when I'm short on cash I'll pound out a round of copper plate wich I sqave for some reason, use a ball ping and the hole in the Andvil is for that. I round the tip of a dowel the size of the bopper head.
if ya want to use a hammer stones for the spalling. Since I'm still a beginner at this I used granite For hammestones about 4" to 1/1/2 in from around town in the whatya call them rock beds around stores I don't think they will mind a stone or 2 missing.
fot the pressure flakers ya can use copper nail or if ya can't find those one can use copper rod wichever is easier to find. can't have the copper to far out from yhe end of the holder or it will bend.
Here is a couple pics on web shots showing some of my tools and my Andvil with its helpers?
if ya click on the web shots photo once and then again ya get a bigger image. hope this helps.PK
http://community.webshots.com/album/569711610dhFGsg?vhost=community