The skill level required using this method is relatively low. A more challenging option would be to do this only using hand-tools.
Take nothing for granted and keep safety as the most important aspect of the project. Make sure you are comfortable with the use of all the tools you use.
Step 1: Overview
Making the Boken
Notes & Cautions
I suggest that you borrow or buy a boken before you start, so you can get the feel and see the details of what you are making. It will also help you set up the curvature of the one you create. Hopefully you are already training with one at some level, so you have an understanding of the balance it should have.
Ganbate kudasai (Japanese for good luck)