you know....to save some bucks and get some practice in... consider getting a couple 2x3" pine boards and practice making a handle. See what cuts are needed, what shaping is needed. etc. In the end, it needs to look good AND feel good. . to YOU.
If you look at folk's bow making, we all tend to have very square, kinda clunky shaped bows for the first one or two, then we start to make them more sleek and well shaped as we do more.
Same with tips, practice on junk wood to get the shape and maybe even what it takes to glue on lams, build up the tips etc.
Plus. . . you can start that right now while you are looking for other supplies.
For many bows, once you get the basic bow shape done, you can use a coarse rasp, a finer file, a coarse round file, a round chain saw file and various sand paper grits.
I really suggest getting cloth backed sand paper cause it holds up better (for me) and you can use it in many different ways, including ripping it into 1/4" or less strips to shape and polish nocks. I like to have pieces of wood, like a 6" section of 3/8" dowel, a 1" x 6" and a 1" x 2" section of flat 1/4" or 3/8" plywood or similar and a popsicle stick to use with the sandpaper.
Somewhere, I think in the build along section, there is a thread made years ago where (I think it was) Wingnut shows a build along which is excellent, although it makes things appear way easier than in (my) reality.
ChuckC