Post your program on here, I like to see what's your program look like? Since you have an Intergrex machince I don't see a big problem with that part at all.
By look at the pic it's compound angle boss, so my approach will be the rotate the boss perpendicular to the spindle head and got the head rotate 80/10deg, and other angle will be taking care in the program itself. hope it help/image what I am try to see what to do. Send me print...... I will look at this.
The best way to learn is trial error.