I have never knapped anything in my life. I would love to give it a try. I don't have a lot of money. What would the basic things I would need to give it a try? 
I love in south central Pa, is there a type of rock/stone in my area that would be good for knapping? I live in very close proximity to the susquehanna river if that helps. 
Any info would be appreciated. I thought about trying to do some bone points but that doesn't seem to help in my quest to learn how to knap.
Thanks,
Bob