Since your buying a bender anyway...... I just heard that Bend-Tech had a smoking deal going on for their software. I bought it a while back and i love it.
If your worried about money and wasting tube, I'd definitely get some bending software. Bend-Tech will save you some serious coin by the end of your project.I will look into that, They are just a few miles from me and I should support the local guy. Only porblem is I will burn up most of my fun money on the bender and tube.