I think I've now used almost everything in terms of tools to try and see what I like. I think the only thing you are missing is some file to cut the nocks with. I use a chainsaw sharpening file. I also like a shinto rasp (though you don't have to have one). I must say that after getting one, I use it in combination with a scraper more than any other tool I have (though I do love my farrier's rasp as well). I think you have a great start with the tools you have listed. I also recommend a good handsaw. My wife bought me a Stanley handsaw at Wal-Mart for around $20.00 for Christmas. It has also proven invaluable for small jobs. Lastly I diddo the aluminum yard stick. I found mine at Hobby Lobby while walking around with the wife one day for three dollars. It is very handy.
To make your first bow the Traditional Bowyer's Bible is a great resource. Don't get bogged down with all of the info however. If you are like me (and it sounds like you are) I have to have practical experience before the reading really makes sense.
My first bow was a red oak 1" x 2" x 72" from Lowe's by the way. Just remember straight grain lines is essential for a board bow. I also found that when making your thickness taper (which most designs seem to call for) the more prep work you do getting the thickness taper just right, easier it seems the bow goes as you tiller it. If you get the thickness taper right, then it seems that your tiller will be pretty close to correct most of the time. It should just take little tweaks to get the bend right. From there you'll just have to take wood off evenly.
Hope this helps! By the way, what area of the country do you live in? I think if you get the chance to work with an experienced bowyer, your chance of success will go up exponentially. If you live close to Kentucky you're welcome to come work with me sometime.
