well, what ive learned, with a bow that short, your gonna need lots of patience to get it right. youll want to practice gluing up stuff, making joints that fit tightly.. theres a lot involved. personally, im not sure you can do it for under 100. if you dont have the proper tools, youll have to buy them. buying horn, sinew, hide glue, wood.. it can get up there. practice getting your self bows shorter and short as you make them, that way you get practice getting tiller correct