Warrior Trike cutting templates

I'm building a recumbent tadpole trike called the Warrior. I bought the plans from http://www.atomiczombie.com/main.aspx?click=plans , so I won't be uploading them, but these are some templates to help you neatly mark and cut the steel tubes.

Templates:
1. a 90 degree notch. this is used to attach the rear-seat-tube to the rear-forks.
2. a 45 degree cut. This is used at the bottom of the rear-seat-tube and the tail end of the rear forks.
3. a 76.66 degree cut. This is used at the front/top